Home / 20,279.30-27,970.01-17,451.45

Finding the Fourth Proportional to 20,279.30, 27,970.01 and 17,451.45

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Solution

The fourth proportional to 20,279.30, 27,970.01 and 17,451.45 is: 24,069.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.30 : 27,970.01 = 17,451.45 : x
  2. Step 2: Convert to fraction form
    20,279.30/27,970.01 = 17,451.45/x
  3. Step 3: Cross multiply
    20,279.30x = 27,970.01 × 17,451.45
  4. Step 4: Simplify right side
    20,279.30x = 488,117,209.20
  5. Step 5: Solve for x
    x = 488,117,209.20/20,279.30
  6. Step 6: Final answer
    x = 24,069.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.