Home / 28,116.69-42,154.20-17,020.75

Finding the Fourth Proportional to 28,116.69, 42,154.20 and 17,020.75

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Solution

The fourth proportional to 28,116.69, 42,154.20 and 17,020.75 is: 25,518.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.69 : 42,154.20 = 17,020.75 : x
  2. Step 2: Convert to fraction form
    28,116.69/42,154.20 = 17,020.75/x
  3. Step 3: Cross multiply
    28,116.69x = 42,154.20 × 17,020.75
  4. Step 4: Simplify right side
    28,116.69x = 717,496,099.65
  5. Step 5: Solve for x
    x = 717,496,099.65/28,116.69
  6. Step 6: Final answer
    x = 25,518.51

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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.