Home / 20,657.46-30,988.23-6,613.95

Finding the Fourth Proportional to 20,657.46, 30,988.23 and 6,613.95

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Solution

The fourth proportional to 20,657.46, 30,988.23 and 6,613.95 is: 9,921.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.46 : 30,988.23 = 6,613.95 : x
  2. Step 2: Convert to fraction form
    20,657.46/30,988.23 = 6,613.95/x
  3. Step 3: Cross multiply
    20,657.46x = 30,988.23 × 6,613.95
  4. Step 4: Simplify right side
    20,657.46x = 204,954,603.81
  5. Step 5: Solve for x
    x = 204,954,603.81/20,657.46
  6. Step 6: Final answer
    x = 9,921.58

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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.