Home / 28,197.50-42,285.31-15,042.69

Finding the Fourth Proportional to 28,197.50, 42,285.31 and 15,042.69

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Solution

The fourth proportional to 28,197.50, 42,285.31 and 15,042.69 is: 22,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.50 : 42,285.31 = 15,042.69 : x
  2. Step 2: Convert to fraction form
    28,197.50/42,285.31 = 15,042.69/x
  3. Step 3: Cross multiply
    28,197.50x = 42,285.31 × 15,042.69
  4. Step 4: Simplify right side
    28,197.50x = 636,084,772.28
  5. Step 5: Solve for x
    x = 636,084,772.28/28,197.50
  6. Step 6: Final answer
    x = 22,558.20

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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.