Home / 21,234.61-29,303.91-11,674.66

Finding the Fourth Proportional to 21,234.61, 29,303.91 and 11,674.66

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Solution

The fourth proportional to 21,234.61, 29,303.91 and 11,674.66 is: 16,111.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.61 : 29,303.91 = 11,674.66 : x
  2. Step 2: Convert to fraction form
    21,234.61/29,303.91 = 11,674.66/x
  3. Step 3: Cross multiply
    21,234.61x = 29,303.91 × 11,674.66
  4. Step 4: Simplify right side
    21,234.61x = 342,113,185.92
  5. Step 5: Solve for x
    x = 342,113,185.92/21,234.61
  6. Step 6: Final answer
    x = 16,111.11

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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.