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Finding the Fourth Proportional to 20,639.71, 30,950.12 and 6,597.01

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Solution

The fourth proportional to 20,639.71, 30,950.12 and 6,597.01 is: 9,892.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639.71 : 30,950.12 = 6,597.01 : x
  2. Step 2: Convert to fraction form
    20,639.71/30,950.12 = 6,597.01/x
  3. Step 3: Cross multiply
    20,639.71x = 30,950.12 × 6,597.01
  4. Step 4: Simplify right side
    20,639.71x = 204,178,218.16
  5. Step 5: Solve for x
    x = 204,178,218.16/20,639.71
  6. Step 6: Final answer
    x = 9,892.49

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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.