Home / 20,176.02-30,266.26-5,385.02

Finding the Fourth Proportional to 20,176.02, 30,266.26 and 5,385.02

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Solution

The fourth proportional to 20,176.02, 30,266.26 and 5,385.02 is: 8,078.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.02 : 30,266.26 = 5,385.02 : x
  2. Step 2: Convert to fraction form
    20,176.02/30,266.26 = 5,385.02/x
  3. Step 3: Cross multiply
    20,176.02x = 30,266.26 × 5,385.02
  4. Step 4: Simplify right side
    20,176.02x = 162,984,415.43
  5. Step 5: Solve for x
    x = 162,984,415.43/20,176.02
  6. Step 6: Final answer
    x = 8,078.13

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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.