Home / 31,520.07-47,287.13-13,753.60

Finding the Fourth Proportional to 31,520.07, 47,287.13 and 13,753.60

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Solution

The fourth proportional to 31,520.07, 47,287.13 and 13,753.60 is: 20,633.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,520.07 : 47,287.13 = 13,753.60 : x
  2. Step 2: Convert to fraction form
    31,520.07/47,287.13 = 13,753.60/x
  3. Step 3: Cross multiply
    31,520.07x = 47,287.13 × 13,753.60
  4. Step 4: Simplify right side
    31,520.07x = 650,368,084.18
  5. Step 5: Solve for x
    x = 650,368,084.18/31,520.07
  6. Step 6: Final answer
    x = 20,633.46

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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.