Home / 22,918.05-31,629.15-12,846.51

Finding the Fourth Proportional to 22,918.05, 31,629.15 and 12,846.51

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Solution

The fourth proportional to 22,918.05, 31,629.15 and 12,846.51 is: 17,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,918.05 : 31,629.15 = 12,846.51 : x
  2. Step 2: Convert to fraction form
    22,918.05/31,629.15 = 12,846.51/x
  3. Step 3: Cross multiply
    22,918.05x = 31,629.15 × 12,846.51
  4. Step 4: Simplify right side
    22,918.05x = 406,324,191.77
  5. Step 5: Solve for x
    x = 406,324,191.77/22,918.05
  6. Step 6: Final answer
    x = 17,729.44

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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.