Home / 22,439-30,965.65-12,367.44

Finding the Fourth Proportional to 22,439, 30,965.65 and 12,367.44

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Solution

The fourth proportional to 22,439, 30,965.65 and 12,367.44 is: 17,066.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,439 : 30,965.65 = 12,367.44 : x
  2. Step 2: Convert to fraction form
    22,439/30,965.65 = 12,367.44/x
  3. Step 3: Cross multiply
    22,439x = 30,965.65 × 12,367.44
  4. Step 4: Simplify right side
    22,439x = 382,965,818.44
  5. Step 5: Solve for x
    x = 382,965,818.44/22,439
  6. Step 6: Final answer
    x = 17,066.97

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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.