Home / 20,279.39-27,970.13-17,451.52

Finding the Fourth Proportional to 20,279.39, 27,970.13 and 17,451.52

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Solution

The fourth proportional to 20,279.39, 27,970.13 and 17,451.52 is: 24,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.39 : 27,970.13 = 17,451.52 : x
  2. Step 2: Convert to fraction form
    20,279.39/27,970.13 = 17,451.52/x
  3. Step 3: Cross multiply
    20,279.39x = 27,970.13 × 17,451.52
  4. Step 4: Simplify right side
    20,279.39x = 488,121,263.52
  5. Step 5: Solve for x
    x = 488,121,263.52/20,279.39
  6. Step 6: Final answer
    x = 24,069.82

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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.