Home / 25,400.70-38,125.35-12,934.80

Finding the Fourth Proportional to 25,400.70, 38,125.35 and 12,934.80

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Solution

The fourth proportional to 25,400.70, 38,125.35 and 12,934.80 is: 19,414.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,400.70 : 38,125.35 = 12,934.80 : x
  2. Step 2: Convert to fraction form
    25,400.70/38,125.35 = 12,934.80/x
  3. Step 3: Cross multiply
    25,400.70x = 38,125.35 × 12,934.80
  4. Step 4: Simplify right side
    25,400.70x = 493,143,777.18
  5. Step 5: Solve for x
    x = 493,143,777.18/25,400.70
  6. Step 6: Final answer
    x = 19,414.57

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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.