Home / 19,607.28-29,393.08-7,121.94

Finding the Fourth Proportional to 19,607.28, 29,393.08 and 7,121.94

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Solution

The fourth proportional to 19,607.28, 29,393.08 and 7,121.94 is: 10,676.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,607.28 : 29,393.08 = 7,121.94 : x
  2. Step 2: Convert to fraction form
    19,607.28/29,393.08 = 7,121.94/x
  3. Step 3: Cross multiply
    19,607.28x = 29,393.08 × 7,121.94
  4. Step 4: Simplify right side
    19,607.28x = 209,335,752.18
  5. Step 5: Solve for x
    x = 209,335,752.18/19,607.28
  6. Step 6: Final answer
    x = 10,676.43

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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.