Home / 27,848.16-38,432.40-15,273.72

Finding the Fourth Proportional to 27,848.16, 38,432.40 and 15,273.72

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Solution

The fourth proportional to 27,848.16, 38,432.40 and 15,273.72 is: 21,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,848.16 : 38,432.40 = 15,273.72 : x
  2. Step 2: Convert to fraction form
    27,848.16/38,432.40 = 15,273.72/x
  3. Step 3: Cross multiply
    27,848.16x = 38,432.40 × 15,273.72
  4. Step 4: Simplify right side
    27,848.16x = 587,005,716.53
  5. Step 5: Solve for x
    x = 587,005,716.53/27,848.16
  6. Step 6: Final answer
    x = 21,078.80

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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.