Home / 21,223.56-31,834.50-7,184.64

Finding the Fourth Proportional to 21,223.56, 31,834.50 and 7,184.64

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Solution

The fourth proportional to 21,223.56, 31,834.50 and 7,184.64 is: 10,776.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.56 : 31,834.50 = 7,184.64 : x
  2. Step 2: Convert to fraction form
    21,223.56/31,834.50 = 7,184.64/x
  3. Step 3: Cross multiply
    21,223.56x = 31,834.50 × 7,184.64
  4. Step 4: Simplify right side
    21,223.56x = 228,719,422.08
  5. Step 5: Solve for x
    x = 228,719,422.08/21,223.56
  6. Step 6: Final answer
    x = 10,776.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.