Home / 21,083.46-31,614.78-7,038.66

Finding the Fourth Proportional to 21,083.46, 31,614.78 and 7,038.66

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Solution

The fourth proportional to 21,083.46, 31,614.78 and 7,038.66 is: 10,554.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.46 : 31,614.78 = 7,038.66 : x
  2. Step 2: Convert to fraction form
    21,083.46/31,614.78 = 7,038.66/x
  3. Step 3: Cross multiply
    21,083.46x = 31,614.78 × 7,038.66
  4. Step 4: Simplify right side
    21,083.46x = 222,525,687.39
  5. Step 5: Solve for x
    x = 222,525,687.39/21,083.46
  6. Step 6: Final answer
    x = 10,554.51

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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.