Home / 22,621.39-31,217.47-12,551.36

Finding the Fourth Proportional to 22,621.39, 31,217.47 and 12,551.36

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Solution

The fourth proportional to 22,621.39, 31,217.47 and 12,551.36 is: 17,320.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.39 : 31,217.47 = 12,551.36 : x
  2. Step 2: Convert to fraction form
    22,621.39/31,217.47 = 12,551.36/x
  3. Step 3: Cross multiply
    22,621.39x = 31,217.47 × 12,551.36
  4. Step 4: Simplify right side
    22,621.39x = 391,821,704.26
  5. Step 5: Solve for x
    x = 391,821,704.26/22,621.39
  6. Step 6: Final answer
    x = 17,320.85

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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.