Home / 25,815.78-35,612.61-16,868.52

Finding the Fourth Proportional to 25,815.78, 35,612.61 and 16,868.52

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Solution

The fourth proportional to 25,815.78, 35,612.61 and 16,868.52 is: 23,269.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.78 : 35,612.61 = 16,868.52 : x
  2. Step 2: Convert to fraction form
    25,815.78/35,612.61 = 16,868.52/x
  3. Step 3: Cross multiply
    25,815.78x = 35,612.61 × 16,868.52
  4. Step 4: Simplify right side
    25,815.78x = 600,732,024.04
  5. Step 5: Solve for x
    x = 600,732,024.04/25,815.78
  6. Step 6: Final answer
    x = 23,269.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.