Home / 20,103.19-30,145.20-9,009.97

Finding the Fourth Proportional to 20,103.19, 30,145.20 and 9,009.97

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Solution

The fourth proportional to 20,103.19, 30,145.20 and 9,009.97 is: 13,510.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.19 : 30,145.20 = 9,009.97 : x
  2. Step 2: Convert to fraction form
    20,103.19/30,145.20 = 9,009.97/x
  3. Step 3: Cross multiply
    20,103.19x = 30,145.20 × 9,009.97
  4. Step 4: Simplify right side
    20,103.19x = 271,607,347.64
  5. Step 5: Solve for x
    x = 271,607,347.64/20,103.19
  6. Step 6: Final answer
    x = 13,510.66

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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.