Home / 31,765.64-47,654.94-10,990.76

Finding the Fourth Proportional to 31,765.64, 47,654.94 and 10,990.76

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Solution

The fourth proportional to 31,765.64, 47,654.94 and 10,990.76 is: 16,488.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,765.64 : 47,654.94 = 10,990.76 : x
  2. Step 2: Convert to fraction form
    31,765.64/47,654.94 = 10,990.76/x
  3. Step 3: Cross multiply
    31,765.64x = 47,654.94 × 10,990.76
  4. Step 4: Simplify right side
    31,765.64x = 523,764,008.35
  5. Step 5: Solve for x
    x = 523,764,008.35/31,765.64
  6. Step 6: Final answer
    x = 16,488.38

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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.