Home / 19,446.76-26,872.86-15,908.68

Finding the Fourth Proportional to 19,446.76, 26,872.86 and 15,908.68

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Solution

The fourth proportional to 19,446.76, 26,872.86 and 15,908.68 is: 21,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,446.76 : 26,872.86 = 15,908.68 : x
  2. Step 2: Convert to fraction form
    19,446.76/26,872.86 = 15,908.68/x
  3. Step 3: Cross multiply
    19,446.76x = 26,872.86 × 15,908.68
  4. Step 4: Simplify right side
    19,446.76x = 427,511,730.42
  5. Step 5: Solve for x
    x = 427,511,730.42/19,446.76
  6. Step 6: Final answer
    x = 21,983.70

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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.