Home / 30,423.75-41,984.78-17,175.75

Finding the Fourth Proportional to 30,423.75, 41,984.78 and 17,175.75

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Solution

The fourth proportional to 30,423.75, 41,984.78 and 17,175.75 is: 23,702.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,423.75 : 41,984.78 = 17,175.75 : x
  2. Step 2: Convert to fraction form
    30,423.75/41,984.78 = 17,175.75/x
  3. Step 3: Cross multiply
    30,423.75x = 41,984.78 × 17,175.75
  4. Step 4: Simplify right side
    30,423.75x = 721,119,999.21
  5. Step 5: Solve for x
    x = 721,119,999.21/30,423.75
  6. Step 6: Final answer
    x = 23,702.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.