Home / 36,663.75-54,995.63-13,290.21

Finding the Fourth Proportional to 36,663.75, 54,995.63 and 13,290.21

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Solution

The fourth proportional to 36,663.75, 54,995.63 and 13,290.21 is: 19,935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,663.75 : 54,995.63 = 13,290.21 : x
  2. Step 2: Convert to fraction form
    36,663.75/54,995.63 = 13,290.21/x
  3. Step 3: Cross multiply
    36,663.75x = 54,995.63 × 13,290.21
  4. Step 4: Simplify right side
    36,663.75x = 730,903,405.33
  5. Step 5: Solve for x
    x = 730,903,405.33/36,663.75
  6. Step 6: Final answer
    x = 19,935.32

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.