Home / 20,173.48-30,325.02-18,730.60

Finding the Fourth Proportional to 20,173.48, 30,325.02 and 18,730.60

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Solution

The fourth proportional to 20,173.48, 30,325.02 and 18,730.60 is: 28,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.48 : 30,325.02 = 18,730.60 : x
  2. Step 2: Convert to fraction form
    20,173.48/30,325.02 = 18,730.60/x
  3. Step 3: Cross multiply
    20,173.48x = 30,325.02 × 18,730.60
  4. Step 4: Simplify right side
    20,173.48x = 568,005,819.61
  5. Step 5: Solve for x
    x = 568,005,819.61/20,173.48
  6. Step 6: Final answer
    x = 28,156.07

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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.