Home / 19,956.78-29,932.74-5,164.47

Finding the Fourth Proportional to 19,956.78, 29,932.74 and 5,164.47

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Solution

The fourth proportional to 19,956.78, 29,932.74 and 5,164.47 is: 7,746.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956.78 : 29,932.74 = 5,164.47 : x
  2. Step 2: Convert to fraction form
    19,956.78/29,932.74 = 5,164.47/x
  3. Step 3: Cross multiply
    19,956.78x = 29,932.74 × 5,164.47
  4. Step 4: Simplify right side
    19,956.78x = 154,586,737.75
  5. Step 5: Solve for x
    x = 154,586,737.75/19,956.78
  6. Step 6: Final answer
    x = 7,746.08

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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.