Home / 31,887.74-47,733.17-20,770.49

Finding the Fourth Proportional to 31,887.74, 47,733.17 and 20,770.49

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Solution

The fourth proportional to 31,887.74, 47,733.17 and 20,770.49 is: 31,091.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,887.74 : 47,733.17 = 20,770.49 : x
  2. Step 2: Convert to fraction form
    31,887.74/47,733.17 = 20,770.49/x
  3. Step 3: Cross multiply
    31,887.74x = 47,733.17 × 20,770.49
  4. Step 4: Simplify right side
    31,887.74x = 991,441,345.63
  5. Step 5: Solve for x
    x = 991,441,345.63/31,887.74
  6. Step 6: Final answer
    x = 31,091.61

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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.