Home / 28,189.38-38,902.58-15,614.13

Finding the Fourth Proportional to 28,189.38, 38,902.58 and 15,614.13

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Solution

The fourth proportional to 28,189.38, 38,902.58 and 15,614.13 is: 21,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189.38 : 38,902.58 = 15,614.13 : x
  2. Step 2: Convert to fraction form
    28,189.38/38,902.58 = 15,614.13/x
  3. Step 3: Cross multiply
    28,189.38x = 38,902.58 × 15,614.13
  4. Step 4: Simplify right side
    28,189.38x = 607,429,941.46
  5. Step 5: Solve for x
    x = 607,429,941.46/28,189.38
  6. Step 6: Final answer
    x = 21,548.18

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Double scale
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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.