Home / 26,139.95-39,177.81-12,080.95

Finding the Fourth Proportional to 26,139.95, 39,177.81 and 12,080.95

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Solution

The fourth proportional to 26,139.95, 39,177.81 and 12,080.95 is: 18,106.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,139.95 : 39,177.81 = 12,080.95 : x
  2. Step 2: Convert to fraction form
    26,139.95/39,177.81 = 12,080.95/x
  3. Step 3: Cross multiply
    26,139.95x = 39,177.81 × 12,080.95
  4. Step 4: Simplify right side
    26,139.95x = 473,305,065.77
  5. Step 5: Solve for x
    x = 473,305,065.77/26,139.95
  6. Step 6: Final answer
    x = 18,106.58

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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.