Home / 19,811.92-29,650.89-19,278.82

Finding the Fourth Proportional to 19,811.92, 29,650.89 and 19,278.82

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Solution

The fourth proportional to 19,811.92, 29,650.89 and 19,278.82 is: 28,853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.92 : 29,650.89 = 19,278.82 : x
  2. Step 2: Convert to fraction form
    19,811.92/29,650.89 = 19,278.82/x
  3. Step 3: Cross multiply
    19,811.92x = 29,650.89 × 19,278.82
  4. Step 4: Simplify right side
    19,811.92x = 571,634,171.15
  5. Step 5: Solve for x
    x = 571,634,171.15/19,811.92
  6. Step 6: Final answer
    x = 28,853.04

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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.