Home / 20,031.73-30,047.47-8,182.98

Finding the Fourth Proportional to 20,031.73, 30,047.47 and 8,182.98

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Solution

The fourth proportional to 20,031.73, 30,047.47 and 8,182.98 is: 12,274.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.73 : 30,047.47 = 8,182.98 : x
  2. Step 2: Convert to fraction form
    20,031.73/30,047.47 = 8,182.98/x
  3. Step 3: Cross multiply
    20,031.73x = 30,047.47 × 8,182.98
  4. Step 4: Simplify right side
    20,031.73x = 245,877,825.60
  5. Step 5: Solve for x
    x = 245,877,825.60/20,031.73
  6. Step 6: Final answer
    x = 12,274.42

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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.