Home / 25,387.92-35,002.80-19,713.06

Finding the Fourth Proportional to 25,387.92, 35,002.80 and 19,713.06

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Solution

The fourth proportional to 25,387.92, 35,002.80 and 19,713.06 is: 27,178.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,387.92 : 35,002.80 = 19,713.06 : x
  2. Step 2: Convert to fraction form
    25,387.92/35,002.80 = 19,713.06/x
  3. Step 3: Cross multiply
    25,387.92x = 35,002.80 × 19,713.06
  4. Step 4: Simplify right side
    25,387.92x = 690,012,296.57
  5. Step 5: Solve for x
    x = 690,012,296.57/25,387.92
  6. Step 6: Final answer
    x = 27,178.76

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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.