Home / 27,849.90-38,446.34-18,777.45

Finding the Fourth Proportional to 27,849.90, 38,446.34 and 18,777.45

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Solution

The fourth proportional to 27,849.90, 38,446.34 and 18,777.45 is: 25,921.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,849.90 : 38,446.34 = 18,777.45 : x
  2. Step 2: Convert to fraction form
    27,849.90/38,446.34 = 18,777.45/x
  3. Step 3: Cross multiply
    27,849.90x = 38,446.34 × 18,777.45
  4. Step 4: Simplify right side
    27,849.90x = 721,924,133.15
  5. Step 5: Solve for x
    x = 721,924,133.15/27,849.90
  6. Step 6: Final answer
    x = 25,921.97

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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.