Home / 20,106.09-30,161.79-7,454.10

Finding the Fourth Proportional to 20,106.09, 30,161.79 and 7,454.10

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Solution

The fourth proportional to 20,106.09, 30,161.79 and 7,454.10 is: 11,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.09 : 30,161.79 = 7,454.10 : x
  2. Step 2: Convert to fraction form
    20,106.09/30,161.79 = 7,454.10/x
  3. Step 3: Cross multiply
    20,106.09x = 30,161.79 × 7,454.10
  4. Step 4: Simplify right side
    20,106.09x = 224,828,998.84
  5. Step 5: Solve for x
    x = 224,828,998.84/20,106.09
  6. Step 6: Final answer
    x = 11,182.13

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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.