Home / 21,996.32-30,352.20-14,043.20

Finding the Fourth Proportional to 21,996.32, 30,352.20 and 14,043.20

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Solution

The fourth proportional to 21,996.32, 30,352.20 and 14,043.20 is: 19,377.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.32 : 30,352.20 = 14,043.20 : x
  2. Step 2: Convert to fraction form
    21,996.32/30,352.20 = 14,043.20/x
  3. Step 3: Cross multiply
    21,996.32x = 30,352.20 × 14,043.20
  4. Step 4: Simplify right side
    21,996.32x = 426,242,015.04
  5. Step 5: Solve for x
    x = 426,242,015.04/21,996.32
  6. Step 6: Final answer
    x = 19,377.88

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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.