Home / 25,405.36-38,131.67-12,934.71

Finding the Fourth Proportional to 25,405.36, 38,131.67 and 12,934.71

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Solution

The fourth proportional to 25,405.36, 38,131.67 and 12,934.71 is: 19,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,405.36 : 38,131.67 = 12,934.71 : x
  2. Step 2: Convert to fraction form
    25,405.36/38,131.67 = 12,934.71/x
  3. Step 3: Cross multiply
    25,405.36x = 38,131.67 × 12,934.71
  4. Step 4: Simplify right side
    25,405.36x = 493,222,125.60
  5. Step 5: Solve for x
    x = 493,222,125.60/25,405.36
  6. Step 6: Final answer
    x = 19,414.10

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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.