Home / 21,936.29-32,904.44-7,146.36

Finding the Fourth Proportional to 21,936.29, 32,904.44 and 7,146.36

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Solution

The fourth proportional to 21,936.29, 32,904.44 and 7,146.36 is: 10,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936.29 : 32,904.44 = 7,146.36 : x
  2. Step 2: Convert to fraction form
    21,936.29/32,904.44 = 7,146.36/x
  3. Step 3: Cross multiply
    21,936.29x = 32,904.44 × 7,146.36
  4. Step 4: Simplify right side
    21,936.29x = 235,147,113.77
  5. Step 5: Solve for x
    x = 235,147,113.77/21,936.29
  6. Step 6: Final answer
    x = 10,719.55

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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.