Home / 23,204.77-31,941.30-20,215.42

Finding the Fourth Proportional to 23,204.77, 31,941.30 and 20,215.42

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Solution

The fourth proportional to 23,204.77, 31,941.30 and 20,215.42 is: 27,826.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,204.77 : 31,941.30 = 20,215.42 : x
  2. Step 2: Convert to fraction form
    23,204.77/31,941.30 = 20,215.42/x
  3. Step 3: Cross multiply
    23,204.77x = 31,941.30 × 20,215.42
  4. Step 4: Simplify right side
    23,204.77x = 645,706,794.85
  5. Step 5: Solve for x
    x = 645,706,794.85/23,204.77
  6. Step 6: Final answer
    x = 27,826.47

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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.