Home / 38,307.36-52,863.84-21,540

Finding the Fourth Proportional to 38,307.36, 52,863.84 and 21,540

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Solution

The fourth proportional to 38,307.36, 52,863.84 and 21,540 is: 29,725.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,307.36 : 52,863.84 = 21,540 : x
  2. Step 2: Convert to fraction form
    38,307.36/52,863.84 = 21,540/x
  3. Step 3: Cross multiply
    38,307.36x = 52,863.84 × 21,540
  4. Step 4: Simplify right side
    38,307.36x = 1,138,687,113.60
  5. Step 5: Solve for x
    x = 1,138,687,113.60/38,307.36
  6. Step 6: Final answer
    x = 29,725.02

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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.