Home / 30,414.92-42,001.46-28,758.27

Finding the Fourth Proportional to 30,414.92, 42,001.46 and 28,758.27

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Solution

The fourth proportional to 30,414.92, 42,001.46 and 28,758.27 is: 39,713.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,414.92 : 42,001.46 = 28,758.27 : x
  2. Step 2: Convert to fraction form
    30,414.92/42,001.46 = 28,758.27/x
  3. Step 3: Cross multiply
    30,414.92x = 42,001.46 × 28,758.27
  4. Step 4: Simplify right side
    30,414.92x = 1,207,889,117.07
  5. Step 5: Solve for x
    x = 1,207,889,117.07/30,414.92
  6. Step 6: Final answer
    x = 39,713.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.