Home / 20,176.26-30,266.02-5,385.06

Finding the Fourth Proportional to 20,176.26, 30,266.02 and 5,385.06

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Solution

The fourth proportional to 20,176.26, 30,266.02 and 5,385.06 is: 8,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.26 : 30,266.02 = 5,385.06 : x
  2. Step 2: Convert to fraction form
    20,176.26/30,266.02 = 5,385.06/x
  3. Step 3: Cross multiply
    20,176.26x = 30,266.02 × 5,385.06
  4. Step 4: Simplify right side
    20,176.26x = 162,984,333.66
  5. Step 5: Solve for x
    x = 162,984,333.66/20,176.26
  6. Step 6: Final answer
    x = 8,078.03

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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.