Home / 20,302.19-28,017.23-11,350.19

Finding the Fourth Proportional to 20,302.19, 28,017.23 and 11,350.19

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Solution

The fourth proportional to 20,302.19, 28,017.23 and 11,350.19 is: 15,663.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.19 : 28,017.23 = 11,350.19 : x
  2. Step 2: Convert to fraction form
    20,302.19/28,017.23 = 11,350.19/x
  3. Step 3: Cross multiply
    20,302.19x = 28,017.23 × 11,350.19
  4. Step 4: Simplify right side
    20,302.19x = 318,000,883.77
  5. Step 5: Solve for x
    x = 318,000,883.77/20,302.19
  6. Step 6: Final answer
    x = 15,663.38

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Half scale
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Double scale
Find fourth proportional to 20,303.19, 28,018.61 and 11,351.19
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.