Home / 19,956.24-29,932.74-7,785.72

Finding the Fourth Proportional to 19,956.24, 29,932.74 and 7,785.72

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Solution

The fourth proportional to 19,956.24, 29,932.74 and 7,785.72 is: 11,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956.24 : 29,932.74 = 7,785.72 : x
  2. Step 2: Convert to fraction form
    19,956.24/29,932.74 = 7,785.72/x
  3. Step 3: Cross multiply
    19,956.24x = 29,932.74 × 7,785.72
  4. Step 4: Simplify right side
    19,956.24x = 233,047,932.47
  5. Step 5: Solve for x
    x = 233,047,932.47/19,956.24
  6. Step 6: Final answer
    x = 11,677.95

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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.