Home / 21,541.93-29,727.46-11,981.77

Finding the Fourth Proportional to 21,541.93, 29,727.46 and 11,981.77

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Solution

The fourth proportional to 21,541.93, 29,727.46 and 11,981.77 is: 16,534.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,541.93 : 29,727.46 = 11,981.77 : x
  2. Step 2: Convert to fraction form
    21,541.93/29,727.46 = 11,981.77/x
  3. Step 3: Cross multiply
    21,541.93x = 29,727.46 × 11,981.77
  4. Step 4: Simplify right side
    21,541.93x = 356,187,588.40
  5. Step 5: Solve for x
    x = 356,187,588.40/21,541.93
  6. Step 6: Final answer
    x = 16,534.62

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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.