Home / 39,549.90-54,578.86-21,644.92

Finding the Fourth Proportional to 39,549.90, 54,578.86 and 21,644.92

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Solution

The fourth proportional to 39,549.90, 54,578.86 and 21,644.92 is: 29,869.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,549.90 : 54,578.86 = 21,644.92 : x
  2. Step 2: Convert to fraction form
    39,549.90/54,578.86 = 21,644.92/x
  3. Step 3: Cross multiply
    39,549.90x = 54,578.86 × 21,644.92
  4. Step 4: Simplify right side
    39,549.90x = 1,181,355,058.39
  5. Step 5: Solve for x
    x = 1,181,355,058.39/39,549.90
  6. Step 6: Final answer
    x = 29,869.99

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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.