Home / 20,106.56-30,169.83-9,021.08

Finding the Fourth Proportional to 20,106.56, 30,169.83 and 9,021.08

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Solution

The fourth proportional to 20,106.56, 30,169.83 and 9,021.08 is: 13,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.56 : 30,169.83 = 9,021.08 : x
  2. Step 2: Convert to fraction form
    20,106.56/30,169.83 = 9,021.08/x
  3. Step 3: Cross multiply
    20,106.56x = 30,169.83 × 9,021.08
  4. Step 4: Simplify right side
    20,106.56x = 272,164,450.02
  5. Step 5: Solve for x
    x = 272,164,450.02/20,106.56
  6. Step 6: Final answer
    x = 13,536.10

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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.