Home / 22,643.97-31,252.40-13,212.51

Finding the Fourth Proportional to 22,643.97, 31,252.40 and 13,212.51

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Solution

The fourth proportional to 22,643.97, 31,252.40 and 13,212.51 is: 18,235.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,643.97 : 31,252.40 = 13,212.51 : x
  2. Step 2: Convert to fraction form
    22,643.97/31,252.40 = 13,212.51/x
  3. Step 3: Cross multiply
    22,643.97x = 31,252.40 × 13,212.51
  4. Step 4: Simplify right side
    22,643.97x = 412,922,647.52
  5. Step 5: Solve for x
    x = 412,922,647.52/22,643.97
  6. Step 6: Final answer
    x = 18,235.44

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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.