Home / 22,605.12-33,920.64-12,618.24

Finding the Fourth Proportional to 22,605.12, 33,920.64 and 12,618.24

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Solution

The fourth proportional to 22,605.12, 33,920.64 and 12,618.24 is: 18,934.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,605.12 : 33,920.64 = 12,618.24 : x
  2. Step 2: Convert to fraction form
    22,605.12/33,920.64 = 12,618.24/x
  3. Step 3: Cross multiply
    22,605.12x = 33,920.64 × 12,618.24
  4. Step 4: Simplify right side
    22,605.12x = 428,018,776.47
  5. Step 5: Solve for x
    x = 428,018,776.47/22,605.12
  6. Step 6: Final answer
    x = 18,934.59

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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.