Home / 28,247.38-42,357.75-10,465.78

Finding the Fourth Proportional to 28,247.38, 42,357.75 and 10,465.78

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Solution

The fourth proportional to 28,247.38, 42,357.75 and 10,465.78 is: 15,693.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.38 : 42,357.75 = 10,465.78 : x
  2. Step 2: Convert to fraction form
    28,247.38/42,357.75 = 10,465.78/x
  3. Step 3: Cross multiply
    28,247.38x = 42,357.75 × 10,465.78
  4. Step 4: Simplify right side
    28,247.38x = 443,306,892.80
  5. Step 5: Solve for x
    x = 443,306,892.80/28,247.38
  6. Step 6: Final answer
    x = 15,693.73

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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.