Home / 19,290.95-28,938.57-6,140.27

Finding the Fourth Proportional to 19,290.95, 28,938.57 and 6,140.27

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Solution

The fourth proportional to 19,290.95, 28,938.57 and 6,140.27 is: 9,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.95 : 28,938.57 = 6,140.27 : x
  2. Step 2: Convert to fraction form
    19,290.95/28,938.57 = 6,140.27/x
  3. Step 3: Cross multiply
    19,290.95x = 28,938.57 × 6,140.27
  4. Step 4: Simplify right side
    19,290.95x = 177,690,633.21
  5. Step 5: Solve for x
    x = 177,690,633.21/19,290.95
  6. Step 6: Final answer
    x = 9,211.09

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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.