Home / 20,531.73-30,792.93-9,427.74

Finding the Fourth Proportional to 20,531.73, 30,792.93 and 9,427.74

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Solution

The fourth proportional to 20,531.73, 30,792.93 and 9,427.74 is: 14,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531.73 : 30,792.93 = 9,427.74 : x
  2. Step 2: Convert to fraction form
    20,531.73/30,792.93 = 9,427.74/x
  3. Step 3: Cross multiply
    20,531.73x = 30,792.93 × 9,427.74
  4. Step 4: Simplify right side
    20,531.73x = 290,307,760.26
  5. Step 5: Solve for x
    x = 290,307,760.26/20,531.73
  6. Step 6: Final answer
    x = 14,139.47

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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.