Home / 22,275.90-33,403.39-12,918.58

Finding the Fourth Proportional to 22,275.90, 33,403.39 and 12,918.58

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Solution

The fourth proportional to 22,275.90, 33,403.39 and 12,918.58 is: 19,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,275.90 : 33,403.39 = 12,918.58 : x
  2. Step 2: Convert to fraction form
    22,275.90/33,403.39 = 12,918.58/x
  3. Step 3: Cross multiply
    22,275.90x = 33,403.39 × 12,918.58
  4. Step 4: Simplify right side
    22,275.90x = 431,524,250.18
  5. Step 5: Solve for x
    x = 431,524,250.18/22,275.90
  6. Step 6: Final answer
    x = 19,371.80

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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.