Home / 20,480.02-30,720.02-5,688.94

Finding the Fourth Proportional to 20,480.02, 30,720.02 and 5,688.94

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Solution

The fourth proportional to 20,480.02, 30,720.02 and 5,688.94 is: 8,533.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480.02 : 30,720.02 = 5,688.94 : x
  2. Step 2: Convert to fraction form
    20,480.02/30,720.02 = 5,688.94/x
  3. Step 3: Cross multiply
    20,480.02x = 30,720.02 × 5,688.94
  4. Step 4: Simplify right side
    20,480.02x = 174,764,350.58
  5. Step 5: Solve for x
    x = 174,764,350.58/20,480.02
  6. Step 6: Final answer
    x = 8,533.41

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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.