Home / 26,700.87-36,855.95-18,745.05

Finding the Fourth Proportional to 26,700.87, 36,855.95 and 18,745.05

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Solution

The fourth proportional to 26,700.87, 36,855.95 and 18,745.05 is: 25,874.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,700.87 : 36,855.95 = 18,745.05 : x
  2. Step 2: Convert to fraction form
    26,700.87/36,855.95 = 18,745.05/x
  3. Step 3: Cross multiply
    26,700.87x = 36,855.95 × 18,745.05
  4. Step 4: Simplify right side
    26,700.87x = 690,866,531.82
  5. Step 5: Solve for x
    x = 690,866,531.82/26,700.87
  6. Step 6: Final answer
    x = 25,874.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.