Home / 23,058.44-31,821.18-12,990.04

Finding the Fourth Proportional to 23,058.44, 31,821.18 and 12,990.04

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Solution

The fourth proportional to 23,058.44, 31,821.18 and 12,990.04 is: 17,926.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,058.44 : 31,821.18 = 12,990.04 : x
  2. Step 2: Convert to fraction form
    23,058.44/31,821.18 = 12,990.04/x
  3. Step 3: Cross multiply
    23,058.44x = 31,821.18 × 12,990.04
  4. Step 4: Simplify right side
    23,058.44x = 413,358,401.05
  5. Step 5: Solve for x
    x = 413,358,401.05/23,058.44
  6. Step 6: Final answer
    x = 17,926.56

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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.