Home / 19,930.56-29,871.36-10,055.04

Finding the Fourth Proportional to 19,930.56, 29,871.36 and 10,055.04

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Solution

The fourth proportional to 19,930.56, 29,871.36 and 10,055.04 is: 15,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.56 : 29,871.36 = 10,055.04 : x
  2. Step 2: Convert to fraction form
    19,930.56/29,871.36 = 10,055.04/x
  3. Step 3: Cross multiply
    19,930.56x = 29,871.36 × 10,055.04
  4. Step 4: Simplify right side
    19,930.56x = 300,357,719.65
  5. Step 5: Solve for x
    x = 300,357,719.65/19,930.56
  6. Step 6: Final answer
    x = 15,070.21

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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.