Home / 28,447.92-39,248.75-18,382.30

Finding the Fourth Proportional to 28,447.92, 39,248.75 and 18,382.30

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Solution

The fourth proportional to 28,447.92, 39,248.75 and 18,382.30 is: 25,361.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447.92 : 39,248.75 = 18,382.30 : x
  2. Step 2: Convert to fraction form
    28,447.92/39,248.75 = 18,382.30/x
  3. Step 3: Cross multiply
    28,447.92x = 39,248.75 × 18,382.30
  4. Step 4: Simplify right side
    28,447.92x = 721,482,244.96
  5. Step 5: Solve for x
    x = 721,482,244.96/28,447.92
  6. Step 6: Final answer
    x = 25,361.51

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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.