Home / 19,751.12-29,638.37-7,279.90

Finding the Fourth Proportional to 19,751.12, 29,638.37 and 7,279.90

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Solution

The fourth proportional to 19,751.12, 29,638.37 and 7,279.90 is: 10,924.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,751.12 : 29,638.37 = 7,279.90 : x
  2. Step 2: Convert to fraction form
    19,751.12/29,638.37 = 7,279.90/x
  3. Step 3: Cross multiply
    19,751.12x = 29,638.37 × 7,279.90
  4. Step 4: Simplify right side
    19,751.12x = 215,764,366.51
  5. Step 5: Solve for x
    x = 215,764,366.51/19,751.12
  6. Step 6: Final answer
    x = 10,924.16

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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.