Home / 19,325.28-28,990.20-6,842.70

Finding the Fourth Proportional to 19,325.28, 28,990.20 and 6,842.70

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Solution

The fourth proportional to 19,325.28, 28,990.20 and 6,842.70 is: 10,264.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,325.28 : 28,990.20 = 6,842.70 : x
  2. Step 2: Convert to fraction form
    19,325.28/28,990.20 = 6,842.70/x
  3. Step 3: Cross multiply
    19,325.28x = 28,990.20 × 6,842.70
  4. Step 4: Simplify right side
    19,325.28x = 198,371,241.54
  5. Step 5: Solve for x
    x = 198,371,241.54/19,325.28
  6. Step 6: Final answer
    x = 10,264.86

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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.