Home / 22,620.39-31,216.09-12,550.36

Finding the Fourth Proportional to 22,620.39, 31,216.09 and 12,550.36

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Solution

The fourth proportional to 22,620.39, 31,216.09 and 12,550.36 is: 17,319.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620.39 : 31,216.09 = 12,550.36 : x
  2. Step 2: Convert to fraction form
    22,620.39/31,216.09 = 12,550.36/x
  3. Step 3: Cross multiply
    22,620.39x = 31,216.09 × 12,550.36
  4. Step 4: Simplify right side
    22,620.39x = 391,773,167.29
  5. Step 5: Solve for x
    x = 391,773,167.29/22,620.39
  6. Step 6: Final answer
    x = 17,319.47

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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.