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Finding the Fourth Proportional to 30,622.86, 45,934.74 and 10,900.90

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Solution

The fourth proportional to 30,622.86, 45,934.74 and 10,900.90 is: 16,351.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,622.86 : 45,934.74 = 10,900.90 : x
  2. Step 2: Convert to fraction form
    30,622.86/45,934.74 = 10,900.90/x
  3. Step 3: Cross multiply
    30,622.86x = 45,934.74 × 10,900.90
  4. Step 4: Simplify right side
    30,622.86x = 500,730,007.27
  5. Step 5: Solve for x
    x = 500,730,007.27/30,622.86
  6. Step 6: Final answer
    x = 16,351.51

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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.