Home / 25,306.30-34,921.80-13,975.60

Finding the Fourth Proportional to 25,306.30, 34,921.80 and 13,975.60

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Solution

The fourth proportional to 25,306.30, 34,921.80 and 13,975.60 is: 19,285.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,306.30 : 34,921.80 = 13,975.60 : x
  2. Step 2: Convert to fraction form
    25,306.30/34,921.80 = 13,975.60/x
  3. Step 3: Cross multiply
    25,306.30x = 34,921.80 × 13,975.60
  4. Step 4: Simplify right side
    25,306.30x = 488,053,108.08
  5. Step 5: Solve for x
    x = 488,053,108.08/25,306.30
  6. Step 6: Final answer
    x = 19,285.83

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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.