Home / 31,287.20-46,935.92-10,221.12

Finding the Fourth Proportional to 31,287.20, 46,935.92 and 10,221.12

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Solution

The fourth proportional to 31,287.20, 46,935.92 and 10,221.12 is: 15,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.20 : 46,935.92 = 10,221.12 : x
  2. Step 2: Convert to fraction form
    31,287.20/46,935.92 = 10,221.12/x
  3. Step 3: Cross multiply
    31,287.20x = 46,935.92 × 10,221.12
  4. Step 4: Simplify right side
    31,287.20x = 479,737,619.52
  5. Step 5: Solve for x
    x = 479,737,619.52/31,287.20
  6. Step 6: Final answer
    x = 15,333.35

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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.