Home / 20,224.10-30,336.15-19,316.90

Finding the Fourth Proportional to 20,224.10, 30,336.15 and 19,316.90

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Solution

The fourth proportional to 20,224.10, 30,336.15 and 19,316.90 is: 28,975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.10 : 30,336.15 = 19,316.90 : x
  2. Step 2: Convert to fraction form
    20,224.10/30,336.15 = 19,316.90/x
  3. Step 3: Cross multiply
    20,224.10x = 30,336.15 × 19,316.90
  4. Step 4: Simplify right side
    20,224.10x = 586,000,375.94
  5. Step 5: Solve for x
    x = 586,000,375.94/20,224.10
  6. Step 6: Final answer
    x = 28,975.35

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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.