Home / 28,080.11-42,126.24-8,360.26

Finding the Fourth Proportional to 28,080.11, 42,126.24 and 8,360.26

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Solution

The fourth proportional to 28,080.11, 42,126.24 and 8,360.26 is: 12,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.11 : 42,126.24 = 8,360.26 : x
  2. Step 2: Convert to fraction form
    28,080.11/42,126.24 = 8,360.26/x
  3. Step 3: Cross multiply
    28,080.11x = 42,126.24 × 8,360.26
  4. Step 4: Simplify right side
    28,080.11x = 352,186,319.22
  5. Step 5: Solve for x
    x = 352,186,319.22/28,080.11
  6. Step 6: Final answer
    x = 12,542.20

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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.