Home / 28,909.20-43,331.40-14,863.80

Finding the Fourth Proportional to 28,909.20, 43,331.40 and 14,863.80

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Solution

The fourth proportional to 28,909.20, 43,331.40 and 14,863.80 is: 22,279.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909.20 : 43,331.40 = 14,863.80 : x
  2. Step 2: Convert to fraction form
    28,909.20/43,331.40 = 14,863.80/x
  3. Step 3: Cross multiply
    28,909.20x = 43,331.40 × 14,863.80
  4. Step 4: Simplify right side
    28,909.20x = 644,069,263.32
  5. Step 5: Solve for x
    x = 644,069,263.32/28,909.20
  6. Step 6: Final answer
    x = 22,279.04

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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.