Home / 39,339.38-54,308.87-30,707.03

Finding the Fourth Proportional to 39,339.38, 54,308.87 and 30,707.03

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Solution

The fourth proportional to 39,339.38, 54,308.87 and 30,707.03 is: 42,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,339.38 : 54,308.87 = 30,707.03 : x
  2. Step 2: Convert to fraction form
    39,339.38/54,308.87 = 30,707.03/x
  3. Step 3: Cross multiply
    39,339.38x = 54,308.87 × 30,707.03
  4. Step 4: Simplify right side
    39,339.38x = 1,667,663,887.82
  5. Step 5: Solve for x
    x = 1,667,663,887.82/39,339.38
  6. Step 6: Final answer
    x = 42,391.72

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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.