Home / 31,899.20-44,008.80-20,566.40

Finding the Fourth Proportional to 31,899.20, 44,008.80 and 20,566.40

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Solution

The fourth proportional to 31,899.20, 44,008.80 and 20,566.40 is: 28,373.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,899.20 : 44,008.80 = 20,566.40 : x
  2. Step 2: Convert to fraction form
    31,899.20/44,008.80 = 20,566.40/x
  3. Step 3: Cross multiply
    31,899.20x = 44,008.80 × 20,566.40
  4. Step 4: Simplify right side
    31,899.20x = 905,102,584.32
  5. Step 5: Solve for x
    x = 905,102,584.32/31,899.20
  6. Step 6: Final answer
    x = 28,373.83

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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.