Home / 20,118.05-30,177.08-6,268.13

Finding the Fourth Proportional to 20,118.05, 30,177.08 and 6,268.13

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Solution

The fourth proportional to 20,118.05, 30,177.08 and 6,268.13 is: 9,402.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.05 : 30,177.08 = 6,268.13 : x
  2. Step 2: Convert to fraction form
    20,118.05/30,177.08 = 6,268.13/x
  3. Step 3: Cross multiply
    20,118.05x = 30,177.08 × 6,268.13
  4. Step 4: Simplify right side
    20,118.05x = 189,153,678.23
  5. Step 5: Solve for x
    x = 189,153,678.23/20,118.05
  6. Step 6: Final answer
    x = 9,402.19

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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.