Home / 28,116.89-42,154.26-17,020.90

Finding the Fourth Proportional to 28,116.89, 42,154.26 and 17,020.90

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Solution

The fourth proportional to 28,116.89, 42,154.26 and 17,020.90 is: 25,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.89 : 42,154.26 = 17,020.90 : x
  2. Step 2: Convert to fraction form
    28,116.89/42,154.26 = 17,020.90/x
  3. Step 3: Cross multiply
    28,116.89x = 42,154.26 × 17,020.90
  4. Step 4: Simplify right side
    28,116.89x = 717,503,444.03
  5. Step 5: Solve for x
    x = 717,503,444.03/28,116.89
  6. Step 6: Final answer
    x = 25,518.59

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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.