Home / 39,557.24-54,586.87-21,648.78

Finding the Fourth Proportional to 39,557.24, 54,586.87 and 21,648.78

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Solution

The fourth proportional to 39,557.24, 54,586.87 and 21,648.78 is: 29,874.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,557.24 : 54,586.87 = 21,648.78 : x
  2. Step 2: Convert to fraction form
    39,557.24/54,586.87 = 21,648.78/x
  3. Step 3: Cross multiply
    39,557.24x = 54,586.87 × 21,648.78
  4. Step 4: Simplify right side
    39,557.24x = 1,181,739,139.52
  5. Step 5: Solve for x
    x = 1,181,739,139.52/39,557.24
  6. Step 6: Final answer
    x = 29,874.16

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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.