Home / 25,377.52-35,016.80-15,939.36

Finding the Fourth Proportional to 25,377.52, 35,016.80 and 15,939.36

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Solution

The fourth proportional to 25,377.52, 35,016.80 and 15,939.36 is: 21,993.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,377.52 : 35,016.80 = 15,939.36 : x
  2. Step 2: Convert to fraction form
    25,377.52/35,016.80 = 15,939.36/x
  3. Step 3: Cross multiply
    25,377.52x = 35,016.80 × 15,939.36
  4. Step 4: Simplify right side
    25,377.52x = 558,145,381.25
  5. Step 5: Solve for x
    x = 558,145,381.25/25,377.52
  6. Step 6: Final answer
    x = 21,993.69

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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.