Home / 39,557.35-54,587.41-21,652.71

Finding the Fourth Proportional to 39,557.35, 54,587.41 and 21,652.71

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Solution

The fourth proportional to 39,557.35, 54,587.41 and 21,652.71 is: 29,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,557.35 : 54,587.41 = 21,652.71 : x
  2. Step 2: Convert to fraction form
    39,557.35/54,587.41 = 21,652.71/x
  3. Step 3: Cross multiply
    39,557.35x = 54,587.41 × 21,652.71
  4. Step 4: Simplify right side
    39,557.35x = 1,181,965,358.38
  5. Step 5: Solve for x
    x = 1,181,965,358.38/39,557.35
  6. Step 6: Final answer
    x = 29,879.79

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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.