Home / 19,470.38-29,210.42-5,619.38

Finding the Fourth Proportional to 19,470.38, 29,210.42 and 5,619.38

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Solution

The fourth proportional to 19,470.38, 29,210.42 and 5,619.38 is: 8,430.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,470.38 : 29,210.42 = 5,619.38 : x
  2. Step 2: Convert to fraction form
    19,470.38/29,210.42 = 5,619.38/x
  3. Step 3: Cross multiply
    19,470.38x = 29,210.42 × 5,619.38
  4. Step 4: Simplify right side
    19,470.38x = 164,144,317.94
  5. Step 5: Solve for x
    x = 164,144,317.94/19,470.38
  6. Step 6: Final answer
    x = 8,430.47

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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.