Home / 25,489.62-38,165.91-20,790.24

Finding the Fourth Proportional to 25,489.62, 38,165.91 and 20,790.24

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Solution

The fourth proportional to 25,489.62, 38,165.91 and 20,790.24 is: 31,129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,489.62 : 38,165.91 = 20,790.24 : x
  2. Step 2: Convert to fraction form
    25,489.62/38,165.91 = 20,790.24/x
  3. Step 3: Cross multiply
    25,489.62x = 38,165.91 × 20,790.24
  4. Step 4: Simplify right side
    25,489.62x = 793,478,428.72
  5. Step 5: Solve for x
    x = 793,478,428.72/25,489.62
  6. Step 6: Final answer
    x = 31,129.47

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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.