Home / 38,664.40-58,007.40-18,943.60

Finding the Fourth Proportional to 38,664.40, 58,007.40 and 18,943.60

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Solution

The fourth proportional to 38,664.40, 58,007.40 and 18,943.60 is: 28,420.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,664.40 : 58,007.40 = 18,943.60 : x
  2. Step 2: Convert to fraction form
    38,664.40/58,007.40 = 18,943.60/x
  3. Step 3: Cross multiply
    38,664.40x = 58,007.40 × 18,943.60
  4. Step 4: Simplify right side
    38,664.40x = 1,098,868,982.64
  5. Step 5: Solve for x
    x = 1,098,868,982.64/38,664.40
  6. Step 6: Final answer
    x = 28,420.69

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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.