Home / 20,399.05-30,598.92-5,607.88

Finding the Fourth Proportional to 20,399.05, 30,598.92 and 5,607.88

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Solution

The fourth proportional to 20,399.05, 30,598.92 and 5,607.88 is: 8,411.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,399.05 : 30,598.92 = 5,607.88 : x
  2. Step 2: Convert to fraction form
    20,399.05/30,598.92 = 5,607.88/x
  3. Step 3: Cross multiply
    20,399.05x = 30,598.92 × 5,607.88
  4. Step 4: Simplify right side
    20,399.05x = 171,595,071.49
  5. Step 5: Solve for x
    x = 171,595,071.49/20,399.05
  6. Step 6: Final answer
    x = 8,411.91

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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.