Home / 28,913.60-43,370.40-15,060.80

Finding the Fourth Proportional to 28,913.60, 43,370.40 and 15,060.80

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Solution

The fourth proportional to 28,913.60, 43,370.40 and 15,060.80 is: 22,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.60 : 43,370.40 = 15,060.80 : x
  2. Step 2: Convert to fraction form
    28,913.60/43,370.40 = 15,060.80/x
  3. Step 3: Cross multiply
    28,913.60x = 43,370.40 × 15,060.80
  4. Step 4: Simplify right side
    28,913.60x = 653,192,920.32
  5. Step 5: Solve for x
    x = 653,192,920.32/28,913.60
  6. Step 6: Final answer
    x = 22,591.20

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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.