Home / 38,501.28-57,717.36-13,860

Finding the Fourth Proportional to 38,501.28, 57,717.36 and 13,860

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Solution

The fourth proportional to 38,501.28, 57,717.36 and 13,860 is: 20,777.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,501.28 : 57,717.36 = 13,860 : x
  2. Step 2: Convert to fraction form
    38,501.28/57,717.36 = 13,860/x
  3. Step 3: Cross multiply
    38,501.28x = 57,717.36 × 13,860
  4. Step 4: Simplify right side
    38,501.28x = 799,962,609.60
  5. Step 5: Solve for x
    x = 799,962,609.60/38,501.28
  6. Step 6: Final answer
    x = 20,777.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.