Home / 21,630.17-29,844.52-13,132.08

Finding the Fourth Proportional to 21,630.17, 29,844.52 and 13,132.08

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Solution

The fourth proportional to 21,630.17, 29,844.52 and 13,132.08 is: 18,119.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.17 : 29,844.52 = 13,132.08 : x
  2. Step 2: Convert to fraction form
    21,630.17/29,844.52 = 13,132.08/x
  3. Step 3: Cross multiply
    21,630.17x = 29,844.52 × 13,132.08
  4. Step 4: Simplify right side
    21,630.17x = 391,920,591.37
  5. Step 5: Solve for x
    x = 391,920,591.37/21,630.17
  6. Step 6: Final answer
    x = 18,119.16

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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.