Home / 25,309.52-34,926.96-13,979.72

Finding the Fourth Proportional to 25,309.52, 34,926.96 and 13,979.72

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Solution

The fourth proportional to 25,309.52, 34,926.96 and 13,979.72 is: 19,291.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,309.52 : 34,926.96 = 13,979.72 : x
  2. Step 2: Convert to fraction form
    25,309.52/34,926.96 = 13,979.72/x
  3. Step 3: Cross multiply
    25,309.52x = 34,926.96 × 13,979.72
  4. Step 4: Simplify right side
    25,309.52x = 488,269,121.25
  5. Step 5: Solve for x
    x = 488,269,121.25/25,309.52
  6. Step 6: Final answer
    x = 19,291.92

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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.