Home / 20,100.20-30,153.02-8,410.68

Finding the Fourth Proportional to 20,100.20, 30,153.02 and 8,410.68

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Solution

The fourth proportional to 20,100.20, 30,153.02 and 8,410.68 is: 12,617.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.20 : 30,153.02 = 8,410.68 : x
  2. Step 2: Convert to fraction form
    20,100.20/30,153.02 = 8,410.68/x
  3. Step 3: Cross multiply
    20,100.20x = 30,153.02 × 8,410.68
  4. Step 4: Simplify right side
    20,100.20x = 253,607,402.25
  5. Step 5: Solve for x
    x = 253,607,402.25/20,100.20
  6. Step 6: Final answer
    x = 12,617.16

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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.