Home / 36,686.43-54,975.69-21,678.12

Finding the Fourth Proportional to 36,686.43, 54,975.69 and 21,678.12

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Solution

The fourth proportional to 36,686.43, 54,975.69 and 21,678.12 is: 32,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,686.43 : 54,975.69 = 21,678.12 : x
  2. Step 2: Convert to fraction form
    36,686.43/54,975.69 = 21,678.12/x
  3. Step 3: Cross multiply
    36,686.43x = 54,975.69 × 21,678.12
  4. Step 4: Simplify right side
    36,686.43x = 1,191,769,604.90
  5. Step 5: Solve for x
    x = 1,191,769,604.90/36,686.43
  6. Step 6: Final answer
    x = 32,485.30

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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.