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Finding the Fourth Proportional to 35,969.53, 49,636.97 and 20,861.22

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Solution

The fourth proportional to 35,969.53, 49,636.97 and 20,861.22 is: 28,787.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,969.53 : 49,636.97 = 20,861.22 : x
  2. Step 2: Convert to fraction form
    35,969.53/49,636.97 = 20,861.22/x
  3. Step 3: Cross multiply
    35,969.53x = 49,636.97 × 20,861.22
  4. Step 4: Simplify right side
    35,969.53x = 1,035,487,823.24
  5. Step 5: Solve for x
    x = 1,035,487,823.24/35,969.53
  6. Step 6: Final answer
    x = 28,787.92

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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.