Home / 19,781.14-29,662.14-7,307.04

Finding the Fourth Proportional to 19,781.14, 29,662.14 and 7,307.04

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Solution

The fourth proportional to 19,781.14, 29,662.14 and 7,307.04 is: 10,957.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.14 : 29,662.14 = 7,307.04 : x
  2. Step 2: Convert to fraction form
    19,781.14/29,662.14 = 7,307.04/x
  3. Step 3: Cross multiply
    19,781.14x = 29,662.14 × 7,307.04
  4. Step 4: Simplify right side
    19,781.14x = 216,742,369.31
  5. Step 5: Solve for x
    x = 216,742,369.31/19,781.14
  6. Step 6: Final answer
    x = 10,957.02

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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.