Home / 28,116.21-42,153.45-17,020.29

Finding the Fourth Proportional to 28,116.21, 42,153.45 and 17,020.29

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Solution

The fourth proportional to 28,116.21, 42,153.45 and 17,020.29 is: 25,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.21 : 42,153.45 = 17,020.29 : x
  2. Step 2: Convert to fraction form
    28,116.21/42,153.45 = 17,020.29/x
  3. Step 3: Cross multiply
    28,116.21x = 42,153.45 × 17,020.29
  4. Step 4: Simplify right side
    28,116.21x = 717,464,037.75
  5. Step 5: Solve for x
    x = 717,464,037.75/28,116.21
  6. Step 6: Final answer
    x = 25,517.80

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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.