Home / 22,958.05-31,679.49-12,885.16

Finding the Fourth Proportional to 22,958.05, 31,679.49 and 12,885.16

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Solution

The fourth proportional to 22,958.05, 31,679.49 and 12,885.16 is: 17,780.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,958.05 : 31,679.49 = 12,885.16 : x
  2. Step 2: Convert to fraction form
    22,958.05/31,679.49 = 12,885.16/x
  3. Step 3: Cross multiply
    22,958.05x = 31,679.49 × 12,885.16
  4. Step 4: Simplify right side
    22,958.05x = 408,195,297.37
  5. Step 5: Solve for x
    x = 408,195,297.37/22,958.05
  6. Step 6: Final answer
    x = 17,780.05

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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.