Home / 30,031.75-41,445.39-17,286.85

Finding the Fourth Proportional to 30,031.75, 41,445.39 and 17,286.85

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Solution

The fourth proportional to 30,031.75, 41,445.39 and 17,286.85 is: 23,856.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,031.75 : 41,445.39 = 17,286.85 : x
  2. Step 2: Convert to fraction form
    30,031.75/41,445.39 = 17,286.85/x
  3. Step 3: Cross multiply
    30,031.75x = 41,445.39 × 17,286.85
  4. Step 4: Simplify right side
    30,031.75x = 716,460,240.12
  5. Step 5: Solve for x
    x = 716,460,240.12/30,031.75
  6. Step 6: Final answer
    x = 23,856.76

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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.