Home / 21,162.90-29,206.53-11,734.50

Finding the Fourth Proportional to 21,162.90, 29,206.53 and 11,734.50

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Solution

The fourth proportional to 21,162.90, 29,206.53 and 11,734.50 is: 16,194.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.90 : 29,206.53 = 11,734.50 : x
  2. Step 2: Convert to fraction form
    21,162.90/29,206.53 = 11,734.50/x
  3. Step 3: Cross multiply
    21,162.90x = 29,206.53 × 11,734.50
  4. Step 4: Simplify right side
    21,162.90x = 342,724,026.29
  5. Step 5: Solve for x
    x = 342,724,026.29/21,162.90
  6. Step 6: Final answer
    x = 16,194.57

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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.