Home / 19,672.16-29,512.56-10,919.84

Finding the Fourth Proportional to 19,672.16, 29,512.56 and 10,919.84

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Solution

The fourth proportional to 19,672.16, 29,512.56 and 10,919.84 is: 16,382.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.16 : 29,512.56 = 10,919.84 : x
  2. Step 2: Convert to fraction form
    19,672.16/29,512.56 = 10,919.84/x
  3. Step 3: Cross multiply
    19,672.16x = 29,512.56 × 10,919.84
  4. Step 4: Simplify right side
    19,672.16x = 322,272,433.19
  5. Step 5: Solve for x
    x = 322,272,433.19/19,672.16
  6. Step 6: Final answer
    x = 16,382.16

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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.