Home / 28,375.60-42,775.90-26,472.64

Finding the Fourth Proportional to 28,375.60, 42,775.90 and 26,472.64

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Solution

The fourth proportional to 28,375.60, 42,775.90 and 26,472.64 is: 39,907.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375.60 : 42,775.90 = 26,472.64 : x
  2. Step 2: Convert to fraction form
    28,375.60/42,775.90 = 26,472.64/x
  3. Step 3: Cross multiply
    28,375.60x = 42,775.90 × 26,472.64
  4. Step 4: Simplify right side
    28,375.60x = 1,132,391,001.38
  5. Step 5: Solve for x
    x = 1,132,391,001.38/28,375.60
  6. Step 6: Final answer
    x = 39,907.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.