Home / 25,685.13-38,535.93-10,906.47

Finding the Fourth Proportional to 25,685.13, 38,535.93 and 10,906.47

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Solution

The fourth proportional to 25,685.13, 38,535.93 and 10,906.47 is: 16,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,685.13 : 38,535.93 = 10,906.47 : x
  2. Step 2: Convert to fraction form
    25,685.13/38,535.93 = 10,906.47/x
  3. Step 3: Cross multiply
    25,685.13x = 38,535.93 × 10,906.47
  4. Step 4: Simplify right side
    25,685.13x = 420,290,964.47
  5. Step 5: Solve for x
    x = 420,290,964.47/25,685.13
  6. Step 6: Final answer
    x = 16,363.20

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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.