Home / 19,515.50-29,273.32-4,724.39

Finding the Fourth Proportional to 19,515.50, 29,273.32 and 4,724.39

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Solution

The fourth proportional to 19,515.50, 29,273.32 and 4,724.39 is: 7,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.50 : 29,273.32 = 4,724.39 : x
  2. Step 2: Convert to fraction form
    19,515.50/29,273.32 = 4,724.39/x
  3. Step 3: Cross multiply
    19,515.50x = 29,273.32 × 4,724.39
  4. Step 4: Simplify right side
    19,515.50x = 138,298,422.10
  5. Step 5: Solve for x
    x = 138,298,422.10/19,515.50
  6. Step 6: Final answer
    x = 7,086.60

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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.