Home / 19,948.74-29,924.13-5,157.78

Finding the Fourth Proportional to 19,948.74, 29,924.13 and 5,157.78

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Solution

The fourth proportional to 19,948.74, 29,924.13 and 5,157.78 is: 7,736.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,948.74 : 29,924.13 = 5,157.78 : x
  2. Step 2: Convert to fraction form
    19,948.74/29,924.13 = 5,157.78/x
  3. Step 3: Cross multiply
    19,948.74x = 29,924.13 × 5,157.78
  4. Step 4: Simplify right side
    19,948.74x = 154,342,210.79
  5. Step 5: Solve for x
    x = 154,342,210.79/19,948.74
  6. Step 6: Final answer
    x = 7,736.94

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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.