Home / 27,875.20-38,466.24-15,297.60

Finding the Fourth Proportional to 27,875.20, 38,466.24 and 15,297.60

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Solution

The fourth proportional to 27,875.20, 38,466.24 and 15,297.60 is: 21,109.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,875.20 : 38,466.24 = 15,297.60 : x
  2. Step 2: Convert to fraction form
    27,875.20/38,466.24 = 15,297.60/x
  3. Step 3: Cross multiply
    27,875.20x = 38,466.24 × 15,297.60
  4. Step 4: Simplify right side
    27,875.20x = 588,441,153.02
  5. Step 5: Solve for x
    x = 588,441,153.02/27,875.20
  6. Step 6: Final answer
    x = 21,109.85

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Similar ratio
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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.