Home / 25,952.31-38,931.20-11,909.95

Finding the Fourth Proportional to 25,952.31, 38,931.20 and 11,909.95

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Solution

The fourth proportional to 25,952.31, 38,931.20 and 11,909.95 is: 17,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,952.31 : 38,931.20 = 11,909.95 : x
  2. Step 2: Convert to fraction form
    25,952.31/38,931.20 = 11,909.95/x
  3. Step 3: Cross multiply
    25,952.31x = 38,931.20 × 11,909.95
  4. Step 4: Simplify right side
    25,952.31x = 463,668,645.44
  5. Step 5: Solve for x
    x = 463,668,645.44/25,952.31
  6. Step 6: Final answer
    x = 17,866.18

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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.