Home / 21,565.26-29,757.96-15,903.09

Finding the Fourth Proportional to 21,565.26, 29,757.96 and 15,903.09

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Solution

The fourth proportional to 21,565.26, 29,757.96 and 15,903.09 is: 21,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,565.26 : 29,757.96 = 15,903.09 : x
  2. Step 2: Convert to fraction form
    21,565.26/29,757.96 = 15,903.09/x
  3. Step 3: Cross multiply
    21,565.26x = 29,757.96 × 15,903.09
  4. Step 4: Simplify right side
    21,565.26x = 473,243,516.10
  5. Step 5: Solve for x
    x = 473,243,516.10/21,565.26
  6. Step 6: Final answer
    x = 21,944.72

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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.