Home / 27,365.70-37,768.22-15,432.78

Finding the Fourth Proportional to 27,365.70, 37,768.22 and 15,432.78

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Solution

The fourth proportional to 27,365.70, 37,768.22 and 15,432.78 is: 21,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,365.70 : 37,768.22 = 15,432.78 : x
  2. Step 2: Convert to fraction form
    27,365.70/37,768.22 = 15,432.78/x
  3. Step 3: Cross multiply
    27,365.70x = 37,768.22 × 15,432.78
  4. Step 4: Simplify right side
    27,365.70x = 582,868,630.25
  5. Step 5: Solve for x
    x = 582,868,630.25/27,365.70
  6. Step 6: Final answer
    x = 21,299.24

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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.