Home / 28,877.94-43,322.31-9,151.20

Finding the Fourth Proportional to 28,877.94, 43,322.31 and 9,151.20

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Solution

The fourth proportional to 28,877.94, 43,322.31 and 9,151.20 is: 13,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.94 : 43,322.31 = 9,151.20 : x
  2. Step 2: Convert to fraction form
    28,877.94/43,322.31 = 9,151.20/x
  3. Step 3: Cross multiply
    28,877.94x = 43,322.31 × 9,151.20
  4. Step 4: Simplify right side
    28,877.94x = 396,451,123.27
  5. Step 5: Solve for x
    x = 396,451,123.27/28,877.94
  6. Step 6: Final answer
    x = 13,728.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.