Home / 28,392.80-42,542.12-17,265.83

Finding the Fourth Proportional to 28,392.80, 42,542.12 and 17,265.83

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Solution

The fourth proportional to 28,392.80, 42,542.12 and 17,265.83 is: 25,870.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392.80 : 42,542.12 = 17,265.83 : x
  2. Step 2: Convert to fraction form
    28,392.80/42,542.12 = 17,265.83/x
  3. Step 3: Cross multiply
    28,392.80x = 42,542.12 × 17,265.83
  4. Step 4: Simplify right side
    28,392.80x = 734,525,225.44
  5. Step 5: Solve for x
    x = 734,525,225.44/28,392.80
  6. Step 6: Final answer
    x = 25,870.12

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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.