Home / 19,470.38-29,164.25-18,788.36

Finding the Fourth Proportional to 19,470.38, 29,164.25 and 18,788.36

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Solution

The fourth proportional to 19,470.38, 29,164.25 and 18,788.36 is: 28,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,470.38 : 29,164.25 = 18,788.36 : x
  2. Step 2: Convert to fraction form
    19,470.38/29,164.25 = 18,788.36/x
  3. Step 3: Cross multiply
    19,470.38x = 29,164.25 × 18,788.36
  4. Step 4: Simplify right side
    19,470.38x = 547,948,329.28
  5. Step 5: Solve for x
    x = 547,948,329.28/19,470.38
  6. Step 6: Final answer
    x = 28,142.67

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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.