Home / 21,843.66-30,150.66-18,891.18

Finding the Fourth Proportional to 21,843.66, 30,150.66 and 18,891.18

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Solution

The fourth proportional to 21,843.66, 30,150.66 and 18,891.18 is: 26,075.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843.66 : 30,150.66 = 18,891.18 : x
  2. Step 2: Convert to fraction form
    21,843.66/30,150.66 = 18,891.18/x
  3. Step 3: Cross multiply
    21,843.66x = 30,150.66 × 18,891.18
  4. Step 4: Simplify right side
    21,843.66x = 569,581,545.18
  5. Step 5: Solve for x
    x = 569,581,545.18/21,843.66
  6. Step 6: Final answer
    x = 26,075.37

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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.