Home / 28,087.20-42,163.20-17,006.40

Finding the Fourth Proportional to 28,087.20, 42,163.20 and 17,006.40

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Solution

The fourth proportional to 28,087.20, 42,163.20 and 17,006.40 is: 25,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.20 : 42,163.20 = 17,006.40 : x
  2. Step 2: Convert to fraction form
    28,087.20/42,163.20 = 17,006.40/x
  3. Step 3: Cross multiply
    28,087.20x = 42,163.20 × 17,006.40
  4. Step 4: Simplify right side
    28,087.20x = 717,044,244.48
  5. Step 5: Solve for x
    x = 717,044,244.48/28,087.20
  6. Step 6: Final answer
    x = 25,529.22

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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.