Home / 31,512.61-47,268.77-9,326.12

Finding the Fourth Proportional to 31,512.61, 47,268.77 and 9,326.12

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Solution

The fourth proportional to 31,512.61, 47,268.77 and 9,326.12 is: 13,989.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.61 : 47,268.77 = 9,326.12 : x
  2. Step 2: Convert to fraction form
    31,512.61/47,268.77 = 9,326.12/x
  3. Step 3: Cross multiply
    31,512.61x = 47,268.77 × 9,326.12
  4. Step 4: Simplify right side
    31,512.61x = 440,834,221.27
  5. Step 5: Solve for x
    x = 440,834,221.27/31,512.61
  6. Step 6: Final answer
    x = 13,989.14

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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.