Home / 25,423.70-38,135.55-12,982.10

Finding the Fourth Proportional to 25,423.70, 38,135.55 and 12,982.10

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Solution

The fourth proportional to 25,423.70, 38,135.55 and 12,982.10 is: 19,473.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,423.70 : 38,135.55 = 12,982.10 : x
  2. Step 2: Convert to fraction form
    25,423.70/38,135.55 = 12,982.10/x
  3. Step 3: Cross multiply
    25,423.70x = 38,135.55 × 12,982.10
  4. Step 4: Simplify right side
    25,423.70x = 495,079,523.66
  5. Step 5: Solve for x
    x = 495,079,523.66/25,423.70
  6. Step 6: Final answer
    x = 19,473.15

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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.