Home / 21,265.14-31,901.15-6,470.58

Finding the Fourth Proportional to 21,265.14, 31,901.15 and 6,470.58

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Solution

The fourth proportional to 21,265.14, 31,901.15 and 6,470.58 is: 9,706.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.14 : 31,901.15 = 6,470.58 : x
  2. Step 2: Convert to fraction form
    21,265.14/31,901.15 = 6,470.58/x
  3. Step 3: Cross multiply
    21,265.14x = 31,901.15 × 6,470.58
  4. Step 4: Simplify right side
    21,265.14x = 206,418,935.08
  5. Step 5: Solve for x
    x = 206,418,935.08/21,265.14
  6. Step 6: Final answer
    x = 9,706.91

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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.