Home / 22,201.51-30,638.69-13,254.21

Finding the Fourth Proportional to 22,201.51, 30,638.69 and 13,254.21

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Solution

The fourth proportional to 22,201.51, 30,638.69 and 13,254.21 is: 18,291.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.51 : 30,638.69 = 13,254.21 : x
  2. Step 2: Convert to fraction form
    22,201.51/30,638.69 = 13,254.21/x
  3. Step 3: Cross multiply
    22,201.51x = 30,638.69 × 13,254.21
  4. Step 4: Simplify right side
    22,201.51x = 406,091,631.38
  5. Step 5: Solve for x
    x = 406,091,631.38/22,201.51
  6. Step 6: Final answer
    x = 18,291.17

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Half scale
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Double scale
Find fourth proportional to 22,202.51, 30,640.07 and 13,255.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.