Home / 21,134.73-31,707.36-6,343.92

Finding the Fourth Proportional to 21,134.73, 31,707.36 and 6,343.92

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Solution

The fourth proportional to 21,134.73, 31,707.36 and 6,343.92 is: 9,517.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.73 : 31,707.36 = 6,343.92 : x
  2. Step 2: Convert to fraction form
    21,134.73/31,707.36 = 6,343.92/x
  3. Step 3: Cross multiply
    21,134.73x = 31,707.36 × 6,343.92
  4. Step 4: Simplify right side
    21,134.73x = 201,148,955.25
  5. Step 5: Solve for x
    x = 201,148,955.25/21,134.73
  6. Step 6: Final answer
    x = 9,517.46

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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.