Home / 21,304.20-31,956.30-5,723.40

Finding the Fourth Proportional to 21,304.20, 31,956.30 and 5,723.40

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Solution

The fourth proportional to 21,304.20, 31,956.30 and 5,723.40 is: 8,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.20 : 31,956.30 = 5,723.40 : x
  2. Step 2: Convert to fraction form
    21,304.20/31,956.30 = 5,723.40/x
  3. Step 3: Cross multiply
    21,304.20x = 31,956.30 × 5,723.40
  4. Step 4: Simplify right side
    21,304.20x = 182,898,687.42
  5. Step 5: Solve for x
    x = 182,898,687.42/21,304.20
  6. Step 6: Final answer
    x = 8,585.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.