Home / 25,809.75-38,688.48-17,490.61

Finding the Fourth Proportional to 25,809.75, 38,688.48 and 17,490.61

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Solution

The fourth proportional to 25,809.75, 38,688.48 and 17,490.61 is: 26,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,809.75 : 38,688.48 = 17,490.61 : x
  2. Step 2: Convert to fraction form
    25,809.75/38,688.48 = 17,490.61/x
  3. Step 3: Cross multiply
    25,809.75x = 38,688.48 × 17,490.61
  4. Step 4: Simplify right side
    25,809.75x = 676,685,115.17
  5. Step 5: Solve for x
    x = 676,685,115.17/25,809.75
  6. Step 6: Final answer
    x = 26,218.20

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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.