Home / 25,679.40-38,519.10-14,620.20

Finding the Fourth Proportional to 25,679.40, 38,519.10 and 14,620.20

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Solution

The fourth proportional to 25,679.40, 38,519.10 and 14,620.20 is: 21,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,679.40 : 38,519.10 = 14,620.20 : x
  2. Step 2: Convert to fraction form
    25,679.40/38,519.10 = 14,620.20/x
  3. Step 3: Cross multiply
    25,679.40x = 38,519.10 × 14,620.20
  4. Step 4: Simplify right side
    25,679.40x = 563,156,945.82
  5. Step 5: Solve for x
    x = 563,156,945.82/25,679.40
  6. Step 6: Final answer
    x = 21,930.30

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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.