Home / 25,564.83-38,265.38-13,688.91

Finding the Fourth Proportional to 25,564.83, 38,265.38 and 13,688.91

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Solution

The fourth proportional to 25,564.83, 38,265.38 and 13,688.91 is: 20,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,564.83 : 38,265.38 = 13,688.91 : x
  2. Step 2: Convert to fraction form
    25,564.83/38,265.38 = 13,688.91/x
  3. Step 3: Cross multiply
    25,564.83x = 38,265.38 × 13,688.91
  4. Step 4: Simplify right side
    25,564.83x = 523,811,325.82
  5. Step 5: Solve for x
    x = 523,811,325.82/25,564.83
  6. Step 6: Final answer
    x = 20,489.53

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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.