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Finding the Fourth Proportional to 33,666.40, 50,426.70 and 21,856.60

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Solution

The fourth proportional to 33,666.40, 50,426.70 and 21,856.60 is: 32,737.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,666.40 : 50,426.70 = 21,856.60 : x
  2. Step 2: Convert to fraction form
    33,666.40/50,426.70 = 21,856.60/x
  3. Step 3: Cross multiply
    33,666.40x = 50,426.70 × 21,856.60
  4. Step 4: Simplify right side
    33,666.40x = 1,102,156,211.22
  5. Step 5: Solve for x
    x = 1,102,156,211.22/33,666.40
  6. Step 6: Final answer
    x = 32,737.57

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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.