Home / 22,789.36-31,450.44-12,718.72

Finding the Fourth Proportional to 22,789.36, 31,450.44 and 12,718.72

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Solution

The fourth proportional to 22,789.36, 31,450.44 and 12,718.72 is: 17,552.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,789.36 : 31,450.44 = 12,718.72 : x
  2. Step 2: Convert to fraction form
    22,789.36/31,450.44 = 12,718.72/x
  3. Step 3: Cross multiply
    22,789.36x = 31,450.44 × 12,718.72
  4. Step 4: Simplify right side
    22,789.36x = 400,009,340.24
  5. Step 5: Solve for x
    x = 400,009,340.24/22,789.36
  6. Step 6: Final answer
    x = 17,552.46

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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.