Home / 26,626.93-39,878.12-21,042.79

Finding the Fourth Proportional to 26,626.93, 39,878.12 and 21,042.79

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Solution

The fourth proportional to 26,626.93, 39,878.12 and 21,042.79 is: 31,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,626.93 : 39,878.12 = 21,042.79 : x
  2. Step 2: Convert to fraction form
    26,626.93/39,878.12 = 21,042.79/x
  3. Step 3: Cross multiply
    26,626.93x = 39,878.12 × 21,042.79
  4. Step 4: Simplify right side
    26,626.93x = 839,146,857.67
  5. Step 5: Solve for x
    x = 839,146,857.67/26,626.93
  6. Step 6: Final answer
    x = 31,514.97

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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.