Home / 26,133.41-39,149.08-20,879.35

Finding the Fourth Proportional to 26,133.41, 39,149.08 and 20,879.35

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Solution

The fourth proportional to 26,133.41, 39,149.08 and 20,879.35 is: 31,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,133.41 : 39,149.08 = 20,879.35 : x
  2. Step 2: Convert to fraction form
    26,133.41/39,149.08 = 20,879.35/x
  3. Step 3: Cross multiply
    26,133.41x = 39,149.08 × 20,879.35
  4. Step 4: Simplify right side
    26,133.41x = 817,407,343.50
  5. Step 5: Solve for x
    x = 817,407,343.50/26,133.41
  6. Step 6: Final answer
    x = 31,278.25

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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.