Home / 25,326.78-34,949.88-13,996.70

Finding the Fourth Proportional to 25,326.78, 34,949.88 and 13,996.70

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Solution

The fourth proportional to 25,326.78, 34,949.88 and 13,996.70 is: 19,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,326.78 : 34,949.88 = 13,996.70 : x
  2. Step 2: Convert to fraction form
    25,326.78/34,949.88 = 13,996.70/x
  3. Step 3: Cross multiply
    25,326.78x = 34,949.88 × 13,996.70
  4. Step 4: Simplify right side
    25,326.78x = 489,182,941.71
  5. Step 5: Solve for x
    x = 489,182,941.71/25,326.78
  6. Step 6: Final answer
    x = 19,314.85

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1.5x scale

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.