Home / 21,022.88-31,545.12-9,344.48

Finding the Fourth Proportional to 21,022.88, 31,545.12 and 9,344.48

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Solution

The fourth proportional to 21,022.88, 31,545.12 and 9,344.48 is: 14,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.88 : 31,545.12 = 9,344.48 : x
  2. Step 2: Convert to fraction form
    21,022.88/31,545.12 = 9,344.48/x
  3. Step 3: Cross multiply
    21,022.88x = 31,545.12 × 9,344.48
  4. Step 4: Simplify right side
    21,022.88x = 294,772,742.94
  5. Step 5: Solve for x
    x = 294,772,742.94/21,022.88
  6. Step 6: Final answer
    x = 14,021.52

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1.5x scale

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.