Home / 31,431.36-47,115.90-14,761.56

Finding the Fourth Proportional to 31,431.36, 47,115.90 and 14,761.56

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Solution

The fourth proportional to 31,431.36, 47,115.90 and 14,761.56 is: 22,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431.36 : 47,115.90 = 14,761.56 : x
  2. Step 2: Convert to fraction form
    31,431.36/47,115.90 = 14,761.56/x
  3. Step 3: Cross multiply
    31,431.36x = 47,115.90 × 14,761.56
  4. Step 4: Simplify right side
    31,431.36x = 695,504,184.80
  5. Step 5: Solve for x
    x = 695,504,184.80/31,431.36
  6. Step 6: Final answer
    x = 22,127.72

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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.