Home / 28,887.24-39,863.92-16,140.60

Finding the Fourth Proportional to 28,887.24, 39,863.92 and 16,140.60

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Solution

The fourth proportional to 28,887.24, 39,863.92 and 16,140.60 is: 22,273.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887.24 : 39,863.92 = 16,140.60 : x
  2. Step 2: Convert to fraction form
    28,887.24/39,863.92 = 16,140.60/x
  3. Step 3: Cross multiply
    28,887.24x = 39,863.92 × 16,140.60
  4. Step 4: Simplify right side
    28,887.24x = 643,427,587.15
  5. Step 5: Solve for x
    x = 643,427,587.15/28,887.24
  6. Step 6: Final answer
    x = 22,273.76

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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.