Home / 19,439.22-29,120.68-10,085.34

Finding the Fourth Proportional to 19,439.22, 29,120.68 and 10,085.34

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Solution

The fourth proportional to 19,439.22, 29,120.68 and 10,085.34 is: 15,108.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.22 : 29,120.68 = 10,085.34 : x
  2. Step 2: Convert to fraction form
    19,439.22/29,120.68 = 10,085.34/x
  3. Step 3: Cross multiply
    19,439.22x = 29,120.68 × 10,085.34
  4. Step 4: Simplify right side
    19,439.22x = 293,691,958.83
  5. Step 5: Solve for x
    x = 293,691,958.83/19,439.22
  6. Step 6: Final answer
    x = 15,108.22

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1.5x scale

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.