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Finding the Fourth Proportional to 35,602.70, 49,131.60 and 20,079.09

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Solution

The fourth proportional to 35,602.70, 49,131.60 and 20,079.09 is: 27,709.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,602.70 : 49,131.60 = 20,079.09 : x
  2. Step 2: Convert to fraction form
    35,602.70/49,131.60 = 20,079.09/x
  3. Step 3: Cross multiply
    35,602.70x = 49,131.60 × 20,079.09
  4. Step 4: Simplify right side
    35,602.70x = 986,517,818.24
  5. Step 5: Solve for x
    x = 986,517,818.24/35,602.70
  6. Step 6: Final answer
    x = 27,709.07

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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.