Home / 20,160.19-30,243.48-5,370.30

Finding the Fourth Proportional to 20,160.19, 30,243.48 and 5,370.30

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Solution

The fourth proportional to 20,160.19, 30,243.48 and 5,370.30 is: 8,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.19 : 30,243.48 = 5,370.30 : x
  2. Step 2: Convert to fraction form
    20,160.19/30,243.48 = 5,370.30/x
  3. Step 3: Cross multiply
    20,160.19x = 30,243.48 × 5,370.30
  4. Step 4: Simplify right side
    20,160.19x = 162,416,540.51
  5. Step 5: Solve for x
    x = 162,416,540.51/20,160.19
  6. Step 6: Final answer
    x = 8,056.30

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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.