Home / 20,071.16-30,108.36-6,220.16

Finding the Fourth Proportional to 20,071.16, 30,108.36 and 6,220.16

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Solution

The fourth proportional to 20,071.16, 30,108.36 and 6,220.16 is: 9,330.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.16 : 30,108.36 = 6,220.16 : x
  2. Step 2: Convert to fraction form
    20,071.16/30,108.36 = 6,220.16/x
  3. Step 3: Cross multiply
    20,071.16x = 30,108.36 × 6,220.16
  4. Step 4: Simplify right side
    20,071.16x = 187,278,816.54
  5. Step 5: Solve for x
    x = 187,278,816.54/20,071.16
  6. Step 6: Final answer
    x = 9,330.74

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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.