Home / 31,572.88-43,557.56-22,147.76

Finding the Fourth Proportional to 31,572.88, 43,557.56 and 22,147.76

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Solution

The fourth proportional to 31,572.88, 43,557.56 and 22,147.76 is: 30,554.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,572.88 : 43,557.56 = 22,147.76 : x
  2. Step 2: Convert to fraction form
    31,572.88/43,557.56 = 22,147.76/x
  3. Step 3: Cross multiply
    31,572.88x = 43,557.56 × 22,147.76
  4. Step 4: Simplify right side
    31,572.88x = 964,702,385.07
  5. Step 5: Solve for x
    x = 964,702,385.07/31,572.88
  6. Step 6: Final answer
    x = 30,554.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.