Home / 20,141.06-30,220.08-10,140.58

Finding the Fourth Proportional to 20,141.06, 30,220.08 and 10,140.58

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Solution

The fourth proportional to 20,141.06, 30,220.08 and 10,140.58 is: 15,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.06 : 30,220.08 = 10,140.58 : x
  2. Step 2: Convert to fraction form
    20,141.06/30,220.08 = 10,140.58/x
  3. Step 3: Cross multiply
    20,141.06x = 30,220.08 × 10,140.58
  4. Step 4: Simplify right side
    20,141.06x = 306,449,138.85
  5. Step 5: Solve for x
    x = 306,449,138.85/20,141.06
  6. Step 6: Final answer
    x = 15,215.14

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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.