Home / 25,425.24-38,146.14-12,279.12

Finding the Fourth Proportional to 25,425.24, 38,146.14 and 12,279.12

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Solution

The fourth proportional to 25,425.24, 38,146.14 and 12,279.12 is: 18,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,425.24 : 38,146.14 = 12,279.12 : x
  2. Step 2: Convert to fraction form
    25,425.24/38,146.14 = 12,279.12/x
  3. Step 3: Cross multiply
    25,425.24x = 38,146.14 × 12,279.12
  4. Step 4: Simplify right side
    25,425.24x = 468,401,030.60
  5. Step 5: Solve for x
    x = 468,401,030.60/25,425.24
  6. Step 6: Final answer
    x = 18,422.68

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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.