Home / 31,899.86-44,023.25-18,471.70

Finding the Fourth Proportional to 31,899.86, 44,023.25 and 18,471.70

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Solution

The fourth proportional to 31,899.86, 44,023.25 and 18,471.70 is: 25,491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,899.86 : 44,023.25 = 18,471.70 : x
  2. Step 2: Convert to fraction form
    31,899.86/44,023.25 = 18,471.70/x
  3. Step 3: Cross multiply
    31,899.86x = 44,023.25 × 18,471.70
  4. Step 4: Simplify right side
    31,899.86x = 813,184,267.03
  5. Step 5: Solve for x
    x = 813,184,267.03/31,899.86
  6. Step 6: Final answer
    x = 25,491.78

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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.