Home / 20,509.02-30,765.27-5,717.95

Finding the Fourth Proportional to 20,509.02, 30,765.27 and 5,717.95

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Solution

The fourth proportional to 20,509.02, 30,765.27 and 5,717.95 is: 8,577.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509.02 : 30,765.27 = 5,717.95 : x
  2. Step 2: Convert to fraction form
    20,509.02/30,765.27 = 5,717.95/x
  3. Step 3: Cross multiply
    20,509.02x = 30,765.27 × 5,717.95
  4. Step 4: Simplify right side
    20,509.02x = 175,914,247.01
  5. Step 5: Solve for x
    x = 175,914,247.01/20,509.02
  6. Step 6: Final answer
    x = 8,577.41

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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.