Home / 28,120.18-42,159.26-17,024.20

Finding the Fourth Proportional to 28,120.18, 42,159.26 and 17,024.20

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Solution

The fourth proportional to 28,120.18, 42,159.26 and 17,024.20 is: 25,523.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120.18 : 42,159.26 = 17,024.20 : x
  2. Step 2: Convert to fraction form
    28,120.18/42,159.26 = 17,024.20/x
  3. Step 3: Cross multiply
    28,120.18x = 42,159.26 × 17,024.20
  4. Step 4: Simplify right side
    28,120.18x = 717,727,420.74
  5. Step 5: Solve for x
    x = 717,727,420.74/28,120.18
  6. Step 6: Final answer
    x = 25,523.58

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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.