Home / 19,851.68-29,777.76-8,162.24

Finding the Fourth Proportional to 19,851.68, 29,777.76 and 8,162.24

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Solution

The fourth proportional to 19,851.68, 29,777.76 and 8,162.24 is: 12,243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.68 : 29,777.76 = 8,162.24 : x
  2. Step 2: Convert to fraction form
    19,851.68/29,777.76 = 8,162.24/x
  3. Step 3: Cross multiply
    19,851.68x = 29,777.76 × 8,162.24
  4. Step 4: Simplify right side
    19,851.68x = 243,053,223.78
  5. Step 5: Solve for x
    x = 243,053,223.78/19,851.68
  6. Step 6: Final answer
    x = 12,243.46

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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.