Home / 25,168.88-34,733.24-15,742.80

Finding the Fourth Proportional to 25,168.88, 34,733.24 and 15,742.80

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Solution

The fourth proportional to 25,168.88, 34,733.24 and 15,742.80 is: 21,725.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,168.88 : 34,733.24 = 15,742.80 : x
  2. Step 2: Convert to fraction form
    25,168.88/34,733.24 = 15,742.80/x
  3. Step 3: Cross multiply
    25,168.88x = 34,733.24 × 15,742.80
  4. Step 4: Simplify right side
    25,168.88x = 546,798,450.67
  5. Step 5: Solve for x
    x = 546,798,450.67/25,168.88
  6. Step 6: Final answer
    x = 21,725.18

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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.