Home / 27,912.48-38,519.20-15,337.22

Finding the Fourth Proportional to 27,912.48, 38,519.20 and 15,337.22

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Solution

The fourth proportional to 27,912.48, 38,519.20 and 15,337.22 is: 21,165.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,912.48 : 38,519.20 = 15,337.22 : x
  2. Step 2: Convert to fraction form
    27,912.48/38,519.20 = 15,337.22/x
  3. Step 3: Cross multiply
    27,912.48x = 38,519.20 × 15,337.22
  4. Step 4: Simplify right side
    27,912.48x = 590,777,444.62
  5. Step 5: Solve for x
    x = 590,777,444.62/27,912.48
  6. Step 6: Final answer
    x = 21,165.35

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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.