Home / 38,509.32-57,749.40-15,123

Finding the Fourth Proportional to 38,509.32, 57,749.40 and 15,123

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Solution

The fourth proportional to 38,509.32, 57,749.40 and 15,123 is: 22,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,509.32 : 57,749.40 = 15,123 : x
  2. Step 2: Convert to fraction form
    38,509.32/57,749.40 = 15,123/x
  3. Step 3: Cross multiply
    38,509.32x = 57,749.40 × 15,123
  4. Step 4: Simplify right side
    38,509.32x = 873,344,176.20
  5. Step 5: Solve for x
    x = 873,344,176.20/38,509.32
  6. Step 6: Final answer
    x = 22,678.77

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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.