Home / 25,491.42-38,246.94-12,342.78

Finding the Fourth Proportional to 25,491.42, 38,246.94 and 12,342.78

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Solution

The fourth proportional to 25,491.42, 38,246.94 and 12,342.78 is: 18,518.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,491.42 : 38,246.94 = 12,342.78 : x
  2. Step 2: Convert to fraction form
    25,491.42/38,246.94 = 12,342.78/x
  3. Step 3: Cross multiply
    25,491.42x = 38,246.94 × 12,342.78
  4. Step 4: Simplify right side
    25,491.42x = 472,073,566.09
  5. Step 5: Solve for x
    x = 472,073,566.09/25,491.42
  6. Step 6: Final answer
    x = 18,518.92

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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.