Home / 15,922.42-21,982.53-10,549.40

Finding the Fourth Proportional to 15,922.42, 21,982.53 and 10,549.40

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Solution

The fourth proportional to 15,922.42, 21,982.53 and 10,549.40 is: 14,564.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922.42 : 21,982.53 = 10,549.40 : x
  2. Step 2: Convert to fraction form
    15,922.42/21,982.53 = 10,549.40/x
  3. Step 3: Cross multiply
    15,922.42x = 21,982.53 × 10,549.40
  4. Step 4: Simplify right side
    15,922.42x = 231,902,501.98
  5. Step 5: Solve for x
    x = 231,902,501.98/15,922.42
  6. Step 6: Final answer
    x = 14,564.53

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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.