Home / 26,112.78-36,011.16-20,134.98

Finding the Fourth Proportional to 26,112.78, 36,011.16 and 20,134.98

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Solution

The fourth proportional to 26,112.78, 36,011.16 and 20,134.98 is: 27,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,112.78 : 36,011.16 = 20,134.98 : x
  2. Step 2: Convert to fraction form
    26,112.78/36,011.16 = 20,134.98/x
  3. Step 3: Cross multiply
    26,112.78x = 36,011.16 × 20,134.98
  4. Step 4: Simplify right side
    26,112.78x = 725,083,986.38
  5. Step 5: Solve for x
    x = 725,083,986.38/26,112.78
  6. Step 6: Final answer
    x = 27,767.40

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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.