Home / 21,711.24-29,957.04-13,744.08

Finding the Fourth Proportional to 21,711.24, 29,957.04 and 13,744.08

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Solution

The fourth proportional to 21,711.24, 29,957.04 and 13,744.08 is: 18,964.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,711.24 : 29,957.04 = 13,744.08 : x
  2. Step 2: Convert to fraction form
    21,711.24/29,957.04 = 13,744.08/x
  3. Step 3: Cross multiply
    21,711.24x = 29,957.04 × 13,744.08
  4. Step 4: Simplify right side
    21,711.24x = 411,731,954.32
  5. Step 5: Solve for x
    x = 411,731,954.32/21,711.24
  6. Step 6: Final answer
    x = 18,964.00

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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.