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Finding the Fourth Proportional to 22,011.45, 33,026.90 and 8,889.45

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Solution

The fourth proportional to 22,011.45, 33,026.90 and 8,889.45 is: 13,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,011.45 : 33,026.90 = 8,889.45 : x
  2. Step 2: Convert to fraction form
    22,011.45/33,026.90 = 8,889.45/x
  3. Step 3: Cross multiply
    22,011.45x = 33,026.90 × 8,889.45
  4. Step 4: Simplify right side
    22,011.45x = 293,590,931.76
  5. Step 5: Solve for x
    x = 293,590,931.76/22,011.45
  6. Step 6: Final answer
    x = 13,338.10

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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.