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Finding the Fourth Proportional to 22,307.87, 30,784.65 and 12,236.11

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Solution

The fourth proportional to 22,307.87, 30,784.65 and 12,236.11 is: 16,885.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,307.87 : 30,784.65 = 12,236.11 : x
  2. Step 2: Convert to fraction form
    22,307.87/30,784.65 = 12,236.11/x
  3. Step 3: Cross multiply
    22,307.87x = 30,784.65 × 12,236.11
  4. Step 4: Simplify right side
    22,307.87x = 376,684,363.71
  5. Step 5: Solve for x
    x = 376,684,363.71/22,307.87
  6. Step 6: Final answer
    x = 16,885.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.