Home / 39,414.72-54,412.38-30,442.08

Finding the Fourth Proportional to 39,414.72, 54,412.38 and 30,442.08

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Solution

The fourth proportional to 39,414.72, 54,412.38 and 30,442.08 is: 42,025.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,414.72 : 54,412.38 = 30,442.08 : x
  2. Step 2: Convert to fraction form
    39,414.72/54,412.38 = 30,442.08/x
  3. Step 3: Cross multiply
    39,414.72x = 54,412.38 × 30,442.08
  4. Step 4: Simplify right side
    39,414.72x = 1,656,426,024.95
  5. Step 5: Solve for x
    x = 1,656,426,024.95/39,414.72
  6. Step 6: Final answer
    x = 42,025.57

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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.