Home / 25,423.92-38,032.20-21,276.72

Finding the Fourth Proportional to 25,423.92, 38,032.20 and 21,276.72

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Solution

The fourth proportional to 25,423.92, 38,032.20 and 21,276.72 is: 31,828.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,423.92 : 38,032.20 = 21,276.72 : x
  2. Step 2: Convert to fraction form
    25,423.92/38,032.20 = 21,276.72/x
  3. Step 3: Cross multiply
    25,423.92x = 38,032.20 × 21,276.72
  4. Step 4: Simplify right side
    25,423.92x = 809,200,470.38
  5. Step 5: Solve for x
    x = 809,200,470.38/25,423.92
  6. Step 6: Final answer
    x = 31,828.31

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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.