Home / 26,687.10-36,818.45-20,556.66

Finding the Fourth Proportional to 26,687.10, 36,818.45 and 20,556.66

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Solution

The fourth proportional to 26,687.10, 36,818.45 and 20,556.66 is: 28,360.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,687.10 : 36,818.45 = 20,556.66 : x
  2. Step 2: Convert to fraction form
    26,687.10/36,818.45 = 20,556.66/x
  3. Step 3: Cross multiply
    26,687.10x = 36,818.45 × 20,556.66
  4. Step 4: Simplify right side
    26,687.10x = 756,864,358.38
  5. Step 5: Solve for x
    x = 756,864,358.38/26,687.10
  6. Step 6: Final answer
    x = 28,360.68

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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.