Home / 26,489.19-39,687.08-13,981.66

Finding the Fourth Proportional to 26,489.19, 39,687.08 and 13,981.66

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Solution

The fourth proportional to 26,489.19, 39,687.08 and 13,981.66 is: 20,947.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,489.19 : 39,687.08 = 13,981.66 : x
  2. Step 2: Convert to fraction form
    26,489.19/39,687.08 = 13,981.66/x
  3. Step 3: Cross multiply
    26,489.19x = 39,687.08 × 13,981.66
  4. Step 4: Simplify right side
    26,489.19x = 554,891,258.95
  5. Step 5: Solve for x
    x = 554,891,258.95/26,489.19
  6. Step 6: Final answer
    x = 20,947.84

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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.