Home / 25,890.29-38,835.04-11,648.71

Finding the Fourth Proportional to 25,890.29, 38,835.04 and 11,648.71

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Solution

The fourth proportional to 25,890.29, 38,835.04 and 11,648.71 is: 17,472.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,890.29 : 38,835.04 = 11,648.71 : x
  2. Step 2: Convert to fraction form
    25,890.29/38,835.04 = 11,648.71/x
  3. Step 3: Cross multiply
    25,890.29x = 38,835.04 × 11,648.71
  4. Step 4: Simplify right side
    25,890.29x = 452,378,118.80
  5. Step 5: Solve for x
    x = 452,378,118.80/25,890.29
  6. Step 6: Final answer
    x = 17,472.89

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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.