Home / 20,045.10-30,112.20-16,764.60

Finding the Fourth Proportional to 20,045.10, 30,112.20 and 16,764.60

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Solution

The fourth proportional to 20,045.10, 30,112.20 and 16,764.60 is: 25,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.10 : 30,112.20 = 16,764.60 : x
  2. Step 2: Convert to fraction form
    20,045.10/30,112.20 = 16,764.60/x
  3. Step 3: Cross multiply
    20,045.10x = 30,112.20 × 16,764.60
  4. Step 4: Simplify right side
    20,045.10x = 504,818,988.12
  5. Step 5: Solve for x
    x = 504,818,988.12/20,045.10
  6. Step 6: Final answer
    x = 25,184.16

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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.