Home / 19,789.96-27,310.18-10,715.42

Finding the Fourth Proportional to 19,789.96, 27,310.18 and 10,715.42

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Solution

The fourth proportional to 19,789.96, 27,310.18 and 10,715.42 is: 14,787.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.96 : 27,310.18 = 10,715.42 : x
  2. Step 2: Convert to fraction form
    19,789.96/27,310.18 = 10,715.42/x
  3. Step 3: Cross multiply
    19,789.96x = 27,310.18 × 10,715.42
  4. Step 4: Simplify right side
    19,789.96x = 292,640,048.98
  5. Step 5: Solve for x
    x = 292,640,048.98/19,789.96
  6. Step 6: Final answer
    x = 14,787.30

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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.