Home / 20,608.02-30,911.22-8,124.30

Finding the Fourth Proportional to 20,608.02, 30,911.22 and 8,124.30

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Solution

The fourth proportional to 20,608.02, 30,911.22 and 8,124.30 is: 12,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.02 : 30,911.22 = 8,124.30 : x
  2. Step 2: Convert to fraction form
    20,608.02/30,911.22 = 8,124.30/x
  3. Step 3: Cross multiply
    20,608.02x = 30,911.22 × 8,124.30
  4. Step 4: Simplify right side
    20,608.02x = 251,132,024.65
  5. Step 5: Solve for x
    x = 251,132,024.65/20,608.02
  6. Step 6: Final answer
    x = 12,186.13

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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.