Home / 21,952.36-30,294.46-12,883.16

Finding the Fourth Proportional to 21,952.36, 30,294.46 and 12,883.16

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Solution

The fourth proportional to 21,952.36, 30,294.46 and 12,883.16 is: 17,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,952.36 : 30,294.46 = 12,883.16 : x
  2. Step 2: Convert to fraction form
    21,952.36/30,294.46 = 12,883.16/x
  3. Step 3: Cross multiply
    21,952.36x = 30,294.46 × 12,883.16
  4. Step 4: Simplify right side
    21,952.36x = 390,288,375.29
  5. Step 5: Solve for x
    x = 390,288,375.29/21,952.36
  6. Step 6: Final answer
    x = 17,778.88

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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.