Home / 20,177.02-30,267.76-5,386.02

Finding the Fourth Proportional to 20,177.02, 30,267.76 and 5,386.02

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Solution

The fourth proportional to 20,177.02, 30,267.76 and 5,386.02 is: 8,079.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.02 : 30,267.76 = 5,386.02 : x
  2. Step 2: Convert to fraction form
    20,177.02/30,267.76 = 5,386.02/x
  3. Step 3: Cross multiply
    20,177.02x = 30,267.76 × 5,386.02
  4. Step 4: Simplify right side
    20,177.02x = 163,022,760.72
  5. Step 5: Solve for x
    x = 163,022,760.72/20,177.02
  6. Step 6: Final answer
    x = 8,079.63

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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.