Home / 20,109.02-30,167.64-9,009.99

Finding the Fourth Proportional to 20,109.02, 30,167.64 and 9,009.99

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Solution

The fourth proportional to 20,109.02, 30,167.64 and 9,009.99 is: 13,516.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.02 : 30,167.64 = 9,009.99 : x
  2. Step 2: Convert to fraction form
    20,109.02/30,167.64 = 9,009.99/x
  3. Step 3: Cross multiply
    20,109.02x = 30,167.64 × 9,009.99
  4. Step 4: Simplify right side
    20,109.02x = 271,810,134.72
  5. Step 5: Solve for x
    x = 271,810,134.72/20,109.02
  6. Step 6: Final answer
    x = 13,516.83

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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.