Home / 39,577.60-54,617.08-21,673.72

Finding the Fourth Proportional to 39,577.60, 54,617.08 and 21,673.72

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Solution

The fourth proportional to 39,577.60, 54,617.08 and 21,673.72 is: 29,909.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,577.60 : 54,617.08 = 21,673.72 : x
  2. Step 2: Convert to fraction form
    39,577.60/54,617.08 = 21,673.72/x
  3. Step 3: Cross multiply
    39,577.60x = 54,617.08 × 21,673.72
  4. Step 4: Simplify right side
    39,577.60x = 1,183,755,299.14
  5. Step 5: Solve for x
    x = 1,183,755,299.14/39,577.60
  6. Step 6: Final answer
    x = 29,909.73

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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.