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Finding the Fourth Proportional to 37,999.40, 52,435.89 and 21,003.71

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Solution

The fourth proportional to 37,999.40, 52,435.89 and 21,003.71 is: 28,983.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,999.40 : 52,435.89 = 21,003.71 : x
  2. Step 2: Convert to fraction form
    37,999.40/52,435.89 = 21,003.71/x
  3. Step 3: Cross multiply
    37,999.40x = 52,435.89 × 21,003.71
  4. Step 4: Simplify right side
    37,999.40x = 1,101,347,964.97
  5. Step 5: Solve for x
    x = 1,101,347,964.97/37,999.40
  6. Step 6: Final answer
    x = 28,983.30

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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.