Home / 20,213.02-30,333.69-11,319.10

Finding the Fourth Proportional to 20,213.02, 30,333.69 and 11,319.10

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Solution

The fourth proportional to 20,213.02, 30,333.69 and 11,319.10 is: 16,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.02 : 30,333.69 = 11,319.10 : x
  2. Step 2: Convert to fraction form
    20,213.02/30,333.69 = 11,319.10/x
  3. Step 3: Cross multiply
    20,213.02x = 30,333.69 × 11,319.10
  4. Step 4: Simplify right side
    20,213.02x = 343,350,070.48
  5. Step 5: Solve for x
    x = 343,350,070.48/20,213.02
  6. Step 6: Final answer
    x = 16,986.58

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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.