Home / 25,778.20-38,657.70-17,963.80

Finding the Fourth Proportional to 25,778.20, 38,657.70 and 17,963.80

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Solution

The fourth proportional to 25,778.20, 38,657.70 and 17,963.80 is: 26,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,778.20 : 38,657.70 = 17,963.80 : x
  2. Step 2: Convert to fraction form
    25,778.20/38,657.70 = 17,963.80/x
  3. Step 3: Cross multiply
    25,778.20x = 38,657.70 × 17,963.80
  4. Step 4: Simplify right side
    25,778.20x = 694,439,191.26
  5. Step 5: Solve for x
    x = 694,439,191.26/25,778.20
  6. Step 6: Final answer
    x = 26,939.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.