Home / 21,178.39-29,226.19-11,746.95

Finding the Fourth Proportional to 21,178.39, 29,226.19 and 11,746.95

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Solution

The fourth proportional to 21,178.39, 29,226.19 and 11,746.95 is: 16,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178.39 : 29,226.19 = 11,746.95 : x
  2. Step 2: Convert to fraction form
    21,178.39/29,226.19 = 11,746.95/x
  3. Step 3: Cross multiply
    21,178.39x = 29,226.19 × 11,746.95
  4. Step 4: Simplify right side
    21,178.39x = 343,318,592.62
  5. Step 5: Solve for x
    x = 343,318,592.62/21,178.39
  6. Step 6: Final answer
    x = 16,210.80

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