Home / 28,179.49-38,887.62-16,242.76

Finding the Fourth Proportional to 28,179.49, 38,887.62 and 16,242.76

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Solution

The fourth proportional to 28,179.49, 38,887.62 and 16,242.76 is: 22,414.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.49 : 38,887.62 = 16,242.76 : x
  2. Step 2: Convert to fraction form
    28,179.49/38,887.62 = 16,242.76/x
  3. Step 3: Cross multiply
    28,179.49x = 38,887.62 × 16,242.76
  4. Step 4: Simplify right side
    28,179.49x = 631,642,278.63
  5. Step 5: Solve for x
    x = 631,642,278.63/28,179.49
  6. Step 6: Final answer
    x = 22,414.96

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Half scale
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Double scale
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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.