Home / 31,617.12-47,432.88-10,839.36

Finding the Fourth Proportional to 31,617.12, 47,432.88 and 10,839.36

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Solution

The fourth proportional to 31,617.12, 47,432.88 and 10,839.36 is: 16,261.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,617.12 : 47,432.88 = 10,839.36 : x
  2. Step 2: Convert to fraction form
    31,617.12/47,432.88 = 10,839.36/x
  3. Step 3: Cross multiply
    31,617.12x = 47,432.88 × 10,839.36
  4. Step 4: Simplify right side
    31,617.12x = 514,142,062.16
  5. Step 5: Solve for x
    x = 514,142,062.16/31,617.12
  6. Step 6: Final answer
    x = 16,261.51

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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.