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Finding the Fourth Proportional to 20,060.52, 30,031.74 and 19,205.16

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Solution

The fourth proportional to 20,060.52, 30,031.74 and 19,205.16 is: 28,751.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,060.52 : 30,031.74 = 19,205.16 : x
  2. Step 2: Convert to fraction form
    20,060.52/30,031.74 = 19,205.16/x
  3. Step 3: Cross multiply
    20,060.52x = 30,031.74 × 19,205.16
  4. Step 4: Simplify right side
    20,060.52x = 576,764,371.78
  5. Step 5: Solve for x
    x = 576,764,371.78/20,060.52
  6. Step 6: Final answer
    x = 28,751.22

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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.