Home / 19,731.52-27,230.15-10,779.85

Finding the Fourth Proportional to 19,731.52, 27,230.15 and 10,779.85

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Solution

The fourth proportional to 19,731.52, 27,230.15 and 10,779.85 is: 14,876.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.52 : 27,230.15 = 10,779.85 : x
  2. Step 2: Convert to fraction form
    19,731.52/27,230.15 = 10,779.85/x
  3. Step 3: Cross multiply
    19,731.52x = 27,230.15 × 10,779.85
  4. Step 4: Simplify right side
    19,731.52x = 293,536,932.48
  5. Step 5: Solve for x
    x = 293,536,932.48/19,731.52
  6. Step 6: Final answer
    x = 14,876.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.