Home / 25,463.81-38,196.74-12,129.95

Finding the Fourth Proportional to 25,463.81, 38,196.74 and 12,129.95

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Solution

The fourth proportional to 25,463.81, 38,196.74 and 12,129.95 is: 18,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,463.81 : 38,196.74 = 12,129.95 : x
  2. Step 2: Convert to fraction form
    25,463.81/38,196.74 = 12,129.95/x
  3. Step 3: Cross multiply
    25,463.81x = 38,196.74 × 12,129.95
  4. Step 4: Simplify right side
    25,463.81x = 463,324,672.18
  5. Step 5: Solve for x
    x = 463,324,672.18/25,463.81
  6. Step 6: Final answer
    x = 18,195.42

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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.