Home / 20,161.35-30,242.00-5,370.32

Finding the Fourth Proportional to 20,161.35, 30,242.00 and 5,370.32

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Solution

The fourth proportional to 20,161.35, 30,242.00 and 5,370.32 is: 8,055.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.35 : 30,242.00 = 5,370.32 : x
  2. Step 2: Convert to fraction form
    20,161.35/30,242.00 = 5,370.32/x
  3. Step 3: Cross multiply
    20,161.35x = 30,242.00 × 5,370.32
  4. Step 4: Simplify right side
    20,161.35x = 162,409,039.38
  5. Step 5: Solve for x
    x = 162,409,039.38/20,161.35
  6. Step 6: Final answer
    x = 8,055.46

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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.