Home / 26,559.06-39,863.20-13,420.66

Finding the Fourth Proportional to 26,559.06, 39,863.20 and 13,420.66

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Solution

The fourth proportional to 26,559.06, 39,863.20 and 13,420.66 is: 20,143.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,559.06 : 39,863.20 = 13,420.66 : x
  2. Step 2: Convert to fraction form
    26,559.06/39,863.20 = 13,420.66/x
  3. Step 3: Cross multiply
    26,559.06x = 39,863.20 × 13,420.66
  4. Step 4: Simplify right side
    26,559.06x = 534,990,453.71
  5. Step 5: Solve for x
    x = 534,990,453.71/26,559.06
  6. Step 6: Final answer
    x = 20,143.43

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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.