Home / 20,542.02-30,816.16-8,695.78

Finding the Fourth Proportional to 20,542.02, 30,816.16 and 8,695.78

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Solution

The fourth proportional to 20,542.02, 30,816.16 and 8,695.78 is: 13,044.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.02 : 30,816.16 = 8,695.78 : x
  2. Step 2: Convert to fraction form
    20,542.02/30,816.16 = 8,695.78/x
  3. Step 3: Cross multiply
    20,542.02x = 30,816.16 × 8,695.78
  4. Step 4: Simplify right side
    20,542.02x = 267,970,547.80
  5. Step 5: Solve for x
    x = 267,970,547.80/20,542.02
  6. Step 6: Final answer
    x = 13,044.99

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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.