Home / 20,711.41-31,041.19-16,311.49

Finding the Fourth Proportional to 20,711.41, 31,041.19 and 16,311.49

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Solution

The fourth proportional to 20,711.41, 31,041.19 and 16,311.49 is: 24,446.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.41 : 31,041.19 = 16,311.49 : x
  2. Step 2: Convert to fraction form
    20,711.41/31,041.19 = 16,311.49/x
  3. Step 3: Cross multiply
    20,711.41x = 31,041.19 × 16,311.49
  4. Step 4: Simplify right side
    20,711.41x = 506,328,060.27
  5. Step 5: Solve for x
    x = 506,328,060.27/20,711.41
  6. Step 6: Final answer
    x = 24,446.82

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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.