Home / 19,283.67-28,929.15-6,139.80

Finding the Fourth Proportional to 19,283.67, 28,929.15 and 6,139.80

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Solution

The fourth proportional to 19,283.67, 28,929.15 and 6,139.80 is: 9,210.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,283.67 : 28,929.15 = 6,139.80 : x
  2. Step 2: Convert to fraction form
    19,283.67/28,929.15 = 6,139.80/x
  3. Step 3: Cross multiply
    19,283.67x = 28,929.15 × 6,139.80
  4. Step 4: Simplify right side
    19,283.67x = 177,619,195.17
  5. Step 5: Solve for x
    x = 177,619,195.17/19,283.67
  6. Step 6: Final answer
    x = 9,210.86

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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.