Home / 19,291.14-28,938.83-6,140.43

Finding the Fourth Proportional to 19,291.14, 28,938.83 and 6,140.43

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Solution

The fourth proportional to 19,291.14, 28,938.83 and 6,140.43 is: 9,211.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,291.14 : 28,938.83 = 6,140.43 : x
  2. Step 2: Convert to fraction form
    19,291.14/28,938.83 = 6,140.43/x
  3. Step 3: Cross multiply
    19,291.14x = 28,938.83 × 6,140.43
  4. Step 4: Simplify right side
    19,291.14x = 177,696,859.90
  5. Step 5: Solve for x
    x = 177,696,859.90/19,291.14
  6. Step 6: Final answer
    x = 9,211.32

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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.