Home / 25,319.88-34,940.82-13,990.46

Finding the Fourth Proportional to 25,319.88, 34,940.82 and 13,990.46

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Solution

The fourth proportional to 25,319.88, 34,940.82 and 13,990.46 is: 19,306.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,319.88 : 34,940.82 = 13,990.46 : x
  2. Step 2: Convert to fraction form
    25,319.88/34,940.82 = 13,990.46/x
  3. Step 3: Cross multiply
    25,319.88x = 34,940.82 × 13,990.46
  4. Step 4: Simplify right side
    25,319.88x = 488,838,144.58
  5. Step 5: Solve for x
    x = 488,838,144.58/25,319.88
  6. Step 6: Final answer
    x = 19,306.50

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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.