Home / 20,387.66-30,581.52-5,596.76

Finding the Fourth Proportional to 20,387.66, 30,581.52 and 5,596.76

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Solution

The fourth proportional to 20,387.66, 30,581.52 and 5,596.76 is: 8,395.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,387.66 : 30,581.52 = 5,596.76 : x
  2. Step 2: Convert to fraction form
    20,387.66/30,581.52 = 5,596.76/x
  3. Step 3: Cross multiply
    20,387.66x = 30,581.52 × 5,596.76
  4. Step 4: Simplify right side
    20,387.66x = 171,157,427.88
  5. Step 5: Solve for x
    x = 171,157,427.88/20,387.66
  6. Step 6: Final answer
    x = 8,395.15

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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.