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Finding the Fourth Proportional to 25,486.92, 38,230.02 and 12,340.44

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Solution

The fourth proportional to 25,486.92, 38,230.02 and 12,340.44 is: 18,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,486.92 : 38,230.02 = 12,340.44 : x
  2. Step 2: Convert to fraction form
    25,486.92/38,230.02 = 12,340.44/x
  3. Step 3: Cross multiply
    25,486.92x = 38,230.02 × 12,340.44
  4. Step 4: Simplify right side
    25,486.92x = 471,775,268.01
  5. Step 5: Solve for x
    x = 471,775,268.01/25,486.92
  6. Step 6: Final answer
    x = 18,510.49

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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.