Home / 20,094.20-30,138.32-5,304.16

Finding the Fourth Proportional to 20,094.20, 30,138.32 and 5,304.16

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Solution

The fourth proportional to 20,094.20, 30,138.32 and 5,304.16 is: 7,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,094.20 : 30,138.32 = 5,304.16 : x
  2. Step 2: Convert to fraction form
    20,094.20/30,138.32 = 5,304.16/x
  3. Step 3: Cross multiply
    20,094.20x = 30,138.32 × 5,304.16
  4. Step 4: Simplify right side
    20,094.20x = 159,858,471.41
  5. Step 5: Solve for x
    x = 159,858,471.41/20,094.20
  6. Step 6: Final answer
    x = 7,955.45

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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.