Home / 21,209.55-31,792.45-9,530.97

Finding the Fourth Proportional to 21,209.55, 31,792.45 and 9,530.97

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Solution

The fourth proportional to 21,209.55, 31,792.45 and 9,530.97 is: 14,286.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209.55 : 31,792.45 = 9,530.97 : x
  2. Step 2: Convert to fraction form
    21,209.55/31,792.45 = 9,530.97/x
  3. Step 3: Cross multiply
    21,209.55x = 31,792.45 × 9,530.97
  4. Step 4: Simplify right side
    21,209.55x = 303,012,887.18
  5. Step 5: Solve for x
    x = 303,012,887.18/21,209.55
  6. Step 6: Final answer
    x = 14,286.62

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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.