Home / 21,355.14-29,470.02-11,923.62

Finding the Fourth Proportional to 21,355.14, 29,470.02 and 11,923.62

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Solution

The fourth proportional to 21,355.14, 29,470.02 and 11,923.62 is: 16,454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355.14 : 29,470.02 = 11,923.62 : x
  2. Step 2: Convert to fraction form
    21,355.14/29,470.02 = 11,923.62/x
  3. Step 3: Cross multiply
    21,355.14x = 29,470.02 × 11,923.62
  4. Step 4: Simplify right side
    21,355.14x = 351,389,319.87
  5. Step 5: Solve for x
    x = 351,389,319.87/21,355.14
  6. Step 6: Final answer
    x = 16,454.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.