Home / 26,131.41-39,146.09-20,877.35

Finding the Fourth Proportional to 26,131.41, 39,146.09 and 20,877.35

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Solution

The fourth proportional to 26,131.41, 39,146.09 and 20,877.35 is: 31,275.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,131.41 : 39,146.09 = 20,877.35 : x
  2. Step 2: Convert to fraction form
    26,131.41/39,146.09 = 20,877.35/x
  3. Step 3: Cross multiply
    26,131.41x = 39,146.09 × 20,877.35
  4. Step 4: Simplify right side
    26,131.41x = 817,266,321.94
  5. Step 5: Solve for x
    x = 817,266,321.94/26,131.41
  6. Step 6: Final answer
    x = 31,275.25

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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.