Home / 34,471.12-47,589.08-20,861.70

Finding the Fourth Proportional to 34,471.12, 47,589.08 and 20,861.70

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Solution

The fourth proportional to 34,471.12, 47,589.08 and 20,861.70 is: 28,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,471.12 : 47,589.08 = 20,861.70 : x
  2. Step 2: Convert to fraction form
    34,471.12/47,589.08 = 20,861.70/x
  3. Step 3: Cross multiply
    34,471.12x = 47,589.08 × 20,861.70
  4. Step 4: Simplify right side
    34,471.12x = 992,789,110.24
  5. Step 5: Solve for x
    x = 992,789,110.24/34,471.12
  6. Step 6: Final answer
    x = 28,800.60

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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.