Home / 27,990.75-38,627.66-15,244.53

Finding the Fourth Proportional to 27,990.75, 38,627.66 and 15,244.53

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Solution

The fourth proportional to 27,990.75, 38,627.66 and 15,244.53 is: 21,037.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.75 : 38,627.66 = 15,244.53 : x
  2. Step 2: Convert to fraction form
    27,990.75/38,627.66 = 15,244.53/x
  3. Step 3: Cross multiply
    27,990.75x = 38,627.66 × 15,244.53
  4. Step 4: Simplify right side
    27,990.75x = 588,860,480.72
  5. Step 5: Solve for x
    x = 588,860,480.72/27,990.75
  6. Step 6: Final answer
    x = 21,037.68

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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.