Home / 39,557.74-54,587.57-21,649.28

Finding the Fourth Proportional to 39,557.74, 54,587.57 and 21,649.28

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Solution

The fourth proportional to 39,557.74, 54,587.57 and 21,649.28 is: 29,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,557.74 : 54,587.57 = 21,649.28 : x
  2. Step 2: Convert to fraction form
    39,557.74/54,587.57 = 21,649.28/x
  3. Step 3: Cross multiply
    39,557.74x = 54,587.57 × 21,649.28
  4. Step 4: Simplify right side
    39,557.74x = 1,181,781,615.67
  5. Step 5: Solve for x
    x = 1,181,781,615.67/39,557.74
  6. Step 6: Final answer
    x = 29,874.85

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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.