Home / 34,591.76-47,737.80-20,456.72

Finding the Fourth Proportional to 34,591.76, 47,737.80 and 20,456.72

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Solution

The fourth proportional to 34,591.76, 47,737.80 and 20,456.72 is: 28,230.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,591.76 : 47,737.80 = 20,456.72 : x
  2. Step 2: Convert to fraction form
    34,591.76/47,737.80 = 20,456.72/x
  3. Step 3: Cross multiply
    34,591.76x = 47,737.80 × 20,456.72
  4. Step 4: Simplify right side
    34,591.76x = 976,558,808.02
  5. Step 5: Solve for x
    x = 976,558,808.02/34,591.76
  6. Step 6: Final answer
    x = 28,230.97

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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.