Home / 39,397.72-54,388.92-30,425.08

Finding the Fourth Proportional to 39,397.72, 54,388.92 and 30,425.08

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Solution

The fourth proportional to 39,397.72, 54,388.92 and 30,425.08 is: 42,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,397.72 : 54,388.92 = 30,425.08 : x
  2. Step 2: Convert to fraction form
    39,397.72/54,388.92 = 30,425.08/x
  3. Step 3: Cross multiply
    39,397.72x = 54,388.92 × 30,425.08
  4. Step 4: Simplify right side
    39,397.72x = 1,654,787,242.11
  5. Step 5: Solve for x
    x = 1,654,787,242.11/39,397.72
  6. Step 6: Final answer
    x = 42,002.11

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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.