Home / 19,291.08-28,938.69-6,140.37

Finding the Fourth Proportional to 19,291.08, 28,938.69 and 6,140.37

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Solution

The fourth proportional to 19,291.08, 28,938.69 and 6,140.37 is: 9,211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,291.08 : 28,938.69 = 6,140.37 : x
  2. Step 2: Convert to fraction form
    19,291.08/28,938.69 = 6,140.37/x
  3. Step 3: Cross multiply
    19,291.08x = 28,938.69 × 6,140.37
  4. Step 4: Simplify right side
    19,291.08x = 177,694,248.56
  5. Step 5: Solve for x
    x = 177,694,248.56/19,291.08
  6. Step 6: Final answer
    x = 9,211.22

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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.