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Finding the Fourth Proportional to 40,329.71, 60,506.87 and 20,622.11

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Solution

The fourth proportional to 40,329.71, 60,506.87 and 20,622.11 is: 30,939.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,329.71 : 60,506.87 = 20,622.11 : x
  2. Step 2: Convert to fraction form
    40,329.71/60,506.87 = 20,622.11/x
  3. Step 3: Cross multiply
    40,329.71x = 60,506.87 × 20,622.11
  4. Step 4: Simplify right side
    40,329.71x = 1,247,778,923.25
  5. Step 5: Solve for x
    x = 1,247,778,923.25/40,329.71
  6. Step 6: Final answer
    x = 30,939.45

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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.