Home / 25,761.04-38,641.76-9,121.14

Finding the Fourth Proportional to 25,761.04, 38,641.76 and 9,121.14

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Solution

The fourth proportional to 25,761.04, 38,641.76 and 9,121.14 is: 13,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,761.04 : 38,641.76 = 9,121.14 : x
  2. Step 2: Convert to fraction form
    25,761.04/38,641.76 = 9,121.14/x
  3. Step 3: Cross multiply
    25,761.04x = 38,641.76 × 9,121.14
  4. Step 4: Simplify right side
    25,761.04x = 352,456,902.81
  5. Step 5: Solve for x
    x = 352,456,902.81/25,761.04
  6. Step 6: Final answer
    x = 13,681.78

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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.