Home / 27,788.32-38,344.30-15,850.95

Finding the Fourth Proportional to 27,788.32, 38,344.30 and 15,850.95

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Solution

The fourth proportional to 27,788.32, 38,344.30 and 15,850.95 is: 21,872.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.32 : 38,344.30 = 15,850.95 : x
  2. Step 2: Convert to fraction form
    27,788.32/38,344.30 = 15,850.95/x
  3. Step 3: Cross multiply
    27,788.32x = 38,344.30 × 15,850.95
  4. Step 4: Simplify right side
    27,788.32x = 607,793,398.67
  5. Step 5: Solve for x
    x = 607,793,398.67/27,788.32
  6. Step 6: Final answer
    x = 21,872.26

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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.