Home / 21,732.67-29,989.74-12,040.21

Finding the Fourth Proportional to 21,732.67, 29,989.74 and 12,040.21

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Solution

The fourth proportional to 21,732.67, 29,989.74 and 12,040.21 is: 16,614.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,732.67 : 29,989.74 = 12,040.21 : x
  2. Step 2: Convert to fraction form
    21,732.67/29,989.74 = 12,040.21/x
  3. Step 3: Cross multiply
    21,732.67x = 29,989.74 × 12,040.21
  4. Step 4: Simplify right side
    21,732.67x = 361,082,767.45
  5. Step 5: Solve for x
    x = 361,082,767.45/21,732.67
  6. Step 6: Final answer
    x = 16,614.74

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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.