Home / 28,121.05-42,160.57-17,025.07

Finding the Fourth Proportional to 28,121.05, 42,160.57 and 17,025.07

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Solution

The fourth proportional to 28,121.05, 42,160.57 and 17,025.07 is: 25,524.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.05 : 42,160.57 = 17,025.07 : x
  2. Step 2: Convert to fraction form
    28,121.05/42,160.57 = 17,025.07/x
  3. Step 3: Cross multiply
    28,121.05x = 42,160.57 × 17,025.07
  4. Step 4: Simplify right side
    28,121.05x = 717,786,655.49
  5. Step 5: Solve for x
    x = 717,786,655.49/28,121.05
  6. Step 6: Final answer
    x = 25,524.89

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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.