Home / 31,470.76-43,428.04-17,320.88

Finding the Fourth Proportional to 31,470.76, 43,428.04 and 17,320.88

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Solution

The fourth proportional to 31,470.76, 43,428.04 and 17,320.88 is: 23,901.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.76 : 43,428.04 = 17,320.88 : x
  2. Step 2: Convert to fraction form
    31,470.76/43,428.04 = 17,320.88/x
  3. Step 3: Cross multiply
    31,470.76x = 43,428.04 × 17,320.88
  4. Step 4: Simplify right side
    31,470.76x = 752,211,869.48
  5. Step 5: Solve for x
    x = 752,211,869.48/31,470.76
  6. Step 6: Final answer
    x = 23,901.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.