Home / 25,440.15-38,168.31-11,412.24

Finding the Fourth Proportional to 25,440.15, 38,168.31 and 11,412.24

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Solution

The fourth proportional to 25,440.15, 38,168.31 and 11,412.24 is: 17,121.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,440.15 : 38,168.31 = 11,412.24 : x
  2. Step 2: Convert to fraction form
    25,440.15/38,168.31 = 11,412.24/x
  3. Step 3: Cross multiply
    25,440.15x = 38,168.31 × 11,412.24
  4. Step 4: Simplify right side
    25,440.15x = 435,585,914.11
  5. Step 5: Solve for x
    x = 435,585,914.11/25,440.15
  6. Step 6: Final answer
    x = 17,121.99

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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.