Home / 25,157.50-34,708.51-15,089.20

Finding the Fourth Proportional to 25,157.50, 34,708.51 and 15,089.20

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Solution

The fourth proportional to 25,157.50, 34,708.51 and 15,089.20 is: 20,817.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,157.50 : 34,708.51 = 15,089.20 : x
  2. Step 2: Convert to fraction form
    25,157.50/34,708.51 = 15,089.20/x
  3. Step 3: Cross multiply
    25,157.50x = 34,708.51 × 15,089.20
  4. Step 4: Simplify right side
    25,157.50x = 523,723,649.09
  5. Step 5: Solve for x
    x = 523,723,649.09/25,157.50
  6. Step 6: Final answer
    x = 20,817.79

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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.