Home / 25,470.78-38,156.47-16,679.04

Finding the Fourth Proportional to 25,470.78, 38,156.47 and 16,679.04

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Solution

The fourth proportional to 25,470.78, 38,156.47 and 16,679.04 is: 24,986.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,470.78 : 38,156.47 = 16,679.04 : x
  2. Step 2: Convert to fraction form
    25,470.78/38,156.47 = 16,679.04/x
  3. Step 3: Cross multiply
    25,470.78x = 38,156.47 × 16,679.04
  4. Step 4: Simplify right side
    25,470.78x = 636,413,211.92
  5. Step 5: Solve for x
    x = 636,413,211.92/25,470.78
  6. Step 6: Final answer
    x = 24,986.01

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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.