Home / 20,586.04-30,863.94-10,195.36

Finding the Fourth Proportional to 20,586.04, 30,863.94 and 10,195.36

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Solution

The fourth proportional to 20,586.04, 30,863.94 and 10,195.36 is: 15,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.04 : 30,863.94 = 10,195.36 : x
  2. Step 2: Convert to fraction form
    20,586.04/30,863.94 = 10,195.36/x
  3. Step 3: Cross multiply
    20,586.04x = 30,863.94 × 10,195.36
  4. Step 4: Simplify right side
    20,586.04x = 314,668,979.32
  5. Step 5: Solve for x
    x = 314,668,979.32/20,586.04
  6. Step 6: Final answer
    x = 15,285.55

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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.