Home / 20,558.32-30,852.24-15,377.92

Finding the Fourth Proportional to 20,558.32, 30,852.24 and 15,377.92

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Solution

The fourth proportional to 20,558.32, 30,852.24 and 15,377.92 is: 23,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.32 : 30,852.24 = 15,377.92 : x
  2. Step 2: Convert to fraction form
    20,558.32/30,852.24 = 15,377.92/x
  3. Step 3: Cross multiply
    20,558.32x = 30,852.24 × 15,377.92
  4. Step 4: Simplify right side
    20,558.32x = 474,443,278.54
  5. Step 5: Solve for x
    x = 474,443,278.54/20,558.32
  6. Step 6: Final answer
    x = 23,077.92

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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.