Home / 31,403.46-47,108.28-11,677.38

Finding the Fourth Proportional to 31,403.46, 47,108.28 and 11,677.38

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Solution

The fourth proportional to 31,403.46, 47,108.28 and 11,677.38 is: 17,517.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,403.46 : 47,108.28 = 11,677.38 : x
  2. Step 2: Convert to fraction form
    31,403.46/47,108.28 = 11,677.38/x
  3. Step 3: Cross multiply
    31,403.46x = 47,108.28 × 11,677.38
  4. Step 4: Simplify right side
    31,403.46x = 550,101,286.71
  5. Step 5: Solve for x
    x = 550,101,286.71/31,403.46
  6. Step 6: Final answer
    x = 17,517.22

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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.