Home / 19,799.28-29,703.12-8,112.48

Finding the Fourth Proportional to 19,799.28, 29,703.12 and 8,112.48

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Solution

The fourth proportional to 19,799.28, 29,703.12 and 8,112.48 is: 12,170.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,799.28 : 29,703.12 = 8,112.48 : x
  2. Step 2: Convert to fraction form
    19,799.28/29,703.12 = 8,112.48/x
  3. Step 3: Cross multiply
    19,799.28x = 29,703.12 × 8,112.48
  4. Step 4: Simplify right side
    19,799.28x = 240,965,966.94
  5. Step 5: Solve for x
    x = 240,965,966.94/19,799.28
  6. Step 6: Final answer
    x = 12,170.44

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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.