Home / 31,861.11-47,715.66-18,505.83

Finding the Fourth Proportional to 31,861.11, 47,715.66 and 18,505.83

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Solution

The fourth proportional to 31,861.11, 47,715.66 and 18,505.83 is: 27,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,861.11 : 47,715.66 = 18,505.83 : x
  2. Step 2: Convert to fraction form
    31,861.11/47,715.66 = 18,505.83/x
  3. Step 3: Cross multiply
    31,861.11x = 47,715.66 × 18,505.83
  4. Step 4: Simplify right side
    31,861.11x = 883,017,892.30
  5. Step 5: Solve for x
    x = 883,017,892.30/31,861.11
  6. Step 6: Final answer
    x = 27,714.60

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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.