Home / 39,412.38-54,384.63-22,650.78

Finding the Fourth Proportional to 39,412.38, 54,384.63 and 22,650.78

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Solution

The fourth proportional to 39,412.38, 54,384.63 and 22,650.78 is: 31,255.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,412.38 : 54,384.63 = 22,650.78 : x
  2. Step 2: Convert to fraction form
    39,412.38/54,384.63 = 22,650.78/x
  3. Step 3: Cross multiply
    39,412.38x = 54,384.63 × 22,650.78
  4. Step 4: Simplify right side
    39,412.38x = 1,231,854,289.51
  5. Step 5: Solve for x
    x = 1,231,854,289.51/39,412.38
  6. Step 6: Final answer
    x = 31,255.52

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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.