Home / 19,767.96-27,279.38-10,815.42

Finding the Fourth Proportional to 19,767.96, 27,279.38 and 10,815.42

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Solution

The fourth proportional to 19,767.96, 27,279.38 and 10,815.42 is: 14,925.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,767.96 : 27,279.38 = 10,815.42 : x
  2. Step 2: Convert to fraction form
    19,767.96/27,279.38 = 10,815.42/x
  3. Step 3: Cross multiply
    19,767.96x = 27,279.38 × 10,815.42
  4. Step 4: Simplify right side
    19,767.96x = 295,037,952.04
  5. Step 5: Solve for x
    x = 295,037,952.04/19,767.96
  6. Step 6: Final answer
    x = 14,925.06

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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.