Home / 23,172.09-31,969.92-13,099.56

Finding the Fourth Proportional to 23,172.09, 31,969.92 and 13,099.56

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Solution

The fourth proportional to 23,172.09, 31,969.92 and 13,099.56 is: 18,073.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,172.09 : 31,969.92 = 13,099.56 : x
  2. Step 2: Convert to fraction form
    23,172.09/31,969.92 = 13,099.56/x
  3. Step 3: Cross multiply
    23,172.09x = 31,969.92 × 13,099.56
  4. Step 4: Simplify right side
    23,172.09x = 418,791,885.24
  5. Step 5: Solve for x
    x = 418,791,885.24/23,172.09
  6. Step 6: Final answer
    x = 18,073.12

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1.5x scale

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.