Home / 25,310.12-34,927.83-13,980.40

Finding the Fourth Proportional to 25,310.12, 34,927.83 and 13,980.40

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Solution

The fourth proportional to 25,310.12, 34,927.83 and 13,980.40 is: 19,292.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,310.12 : 34,927.83 = 13,980.40 : x
  2. Step 2: Convert to fraction form
    25,310.12/34,927.83 = 13,980.40/x
  3. Step 3: Cross multiply
    25,310.12x = 34,927.83 × 13,980.40
  4. Step 4: Simplify right side
    25,310.12x = 488,304,986.53
  5. Step 5: Solve for x
    x = 488,304,986.53/25,310.12
  6. Step 6: Final answer
    x = 19,292.87

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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.