Home / 21,244.55-29,304.54-15,284.30

Finding the Fourth Proportional to 21,244.55, 29,304.54 and 15,284.30

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Solution

The fourth proportional to 21,244.55, 29,304.54 and 15,284.30 is: 21,083.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.55 : 29,304.54 = 15,284.30 : x
  2. Step 2: Convert to fraction form
    21,244.55/29,304.54 = 15,284.30/x
  3. Step 3: Cross multiply
    21,244.55x = 29,304.54 × 15,284.30
  4. Step 4: Simplify right side
    21,244.55x = 447,899,234.20
  5. Step 5: Solve for x
    x = 447,899,234.20/21,244.55
  6. Step 6: Final answer
    x = 21,083.02

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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.