Home / 30,592.92-42,233.06-20,517.68

Finding the Fourth Proportional to 30,592.92, 42,233.06 and 20,517.68

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Solution

The fourth proportional to 30,592.92, 42,233.06 and 20,517.68 is: 28,324.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,592.92 : 42,233.06 = 20,517.68 : x
  2. Step 2: Convert to fraction form
    30,592.92/42,233.06 = 20,517.68/x
  3. Step 3: Cross multiply
    30,592.92x = 42,233.06 × 20,517.68
  4. Step 4: Simplify right side
    30,592.92x = 866,524,410.50
  5. Step 5: Solve for x
    x = 866,524,410.50/30,592.92
  6. Step 6: Final answer
    x = 28,324.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.