Home / 25,136.80-34,687.44-15,065.64

Finding the Fourth Proportional to 25,136.80, 34,687.44 and 15,065.64

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Solution

The fourth proportional to 25,136.80, 34,687.44 and 15,065.64 is: 20,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,136.80 : 34,687.44 = 15,065.64 : x
  2. Step 2: Convert to fraction form
    25,136.80/34,687.44 = 15,065.64/x
  3. Step 3: Cross multiply
    25,136.80x = 34,687.44 × 15,065.64
  4. Step 4: Simplify right side
    25,136.80x = 522,588,483.56
  5. Step 5: Solve for x
    x = 522,588,483.56/25,136.80
  6. Step 6: Final answer
    x = 20,789.78

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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.