Home / 20,518.42-30,772.16-5,724.74

Finding the Fourth Proportional to 20,518.42, 30,772.16 and 5,724.74

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Solution

The fourth proportional to 20,518.42, 30,772.16 and 5,724.74 is: 8,585.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518.42 : 30,772.16 = 5,724.74 : x
  2. Step 2: Convert to fraction form
    20,518.42/30,772.16 = 5,724.74/x
  3. Step 3: Cross multiply
    20,518.42x = 30,772.16 × 5,724.74
  4. Step 4: Simplify right side
    20,518.42x = 176,162,432.75
  5. Step 5: Solve for x
    x = 176,162,432.75/20,518.42
  6. Step 6: Final answer
    x = 8,585.57

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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.