Home / 21,265.34-31,903.20-6,473.45

Finding the Fourth Proportional to 21,265.34, 31,903.20 and 6,473.45

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Solution

The fourth proportional to 21,265.34, 31,903.20 and 6,473.45 is: 9,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.34 : 31,903.20 = 6,473.45 : x
  2. Step 2: Convert to fraction form
    21,265.34/31,903.20 = 6,473.45/x
  3. Step 3: Cross multiply
    21,265.34x = 31,903.20 × 6,473.45
  4. Step 4: Simplify right side
    21,265.34x = 206,523,849.80
  5. Step 5: Solve for x
    x = 206,523,849.80/21,265.34
  6. Step 6: Final answer
    x = 9,711.76

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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.