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Finding the Fourth Proportional to 22,221.45, 33,332.16 and 8,900.45

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Solution

The fourth proportional to 22,221.45, 33,332.16 and 8,900.45 is: 13,350.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.45 : 33,332.16 = 8,900.45 : x
  2. Step 2: Convert to fraction form
    22,221.45/33,332.16 = 8,900.45/x
  3. Step 3: Cross multiply
    22,221.45x = 33,332.16 × 8,900.45
  4. Step 4: Simplify right side
    22,221.45x = 296,671,056.81
  5. Step 5: Solve for x
    x = 296,671,056.81/22,221.45
  6. Step 6: Final answer
    x = 13,350.66

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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.