Home / 19,966.54-29,949.27-5,175.40

Finding the Fourth Proportional to 19,966.54, 29,949.27 and 5,175.40

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Solution

The fourth proportional to 19,966.54, 29,949.27 and 5,175.40 is: 7,762.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.54 : 29,949.27 = 5,175.40 : x
  2. Step 2: Convert to fraction form
    19,966.54/29,949.27 = 5,175.40/x
  3. Step 3: Cross multiply
    19,966.54x = 29,949.27 × 5,175.40
  4. Step 4: Simplify right side
    19,966.54x = 154,999,451.96
  5. Step 5: Solve for x
    x = 154,999,451.96/19,966.54
  6. Step 6: Final answer
    x = 7,762.96

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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.