Home / 20,182.41-30,274.76-6,142.90

Finding the Fourth Proportional to 20,182.41, 30,274.76 and 6,142.90

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Solution

The fourth proportional to 20,182.41, 30,274.76 and 6,142.90 is: 9,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.41 : 30,274.76 = 6,142.90 : x
  2. Step 2: Convert to fraction form
    20,182.41/30,274.76 = 6,142.90/x
  3. Step 3: Cross multiply
    20,182.41x = 30,274.76 × 6,142.90
  4. Step 4: Simplify right side
    20,182.41x = 185,974,823.20
  5. Step 5: Solve for x
    x = 185,974,823.20/20,182.41
  6. Step 6: Final answer
    x = 9,214.70

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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.