Home / 15,382.28-23,091.65-12,947.42

Finding the Fourth Proportional to 15,382.28, 23,091.65 and 12,947.42

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Solution

The fourth proportional to 15,382.28, 23,091.65 and 12,947.42 is: 19,436.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382.28 : 23,091.65 = 12,947.42 : x
  2. Step 2: Convert to fraction form
    15,382.28/23,091.65 = 12,947.42/x
  3. Step 3: Cross multiply
    15,382.28x = 23,091.65 × 12,947.42
  4. Step 4: Simplify right side
    15,382.28x = 298,977,291.04
  5. Step 5: Solve for x
    x = 298,977,291.04/15,382.28
  6. Step 6: Final answer
    x = 19,436.47

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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.