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Finding the Fourth Proportional to 37,405.80, 51,622.92 and 21,495.78

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Solution

The fourth proportional to 37,405.80, 51,622.92 and 21,495.78 is: 29,665.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,405.80 : 51,622.92 = 21,495.78 : x
  2. Step 2: Convert to fraction form
    37,405.80/51,622.92 = 21,495.78/x
  3. Step 3: Cross multiply
    37,405.80x = 51,622.92 × 21,495.78
  4. Step 4: Simplify right side
    37,405.80x = 1,109,674,931.28
  5. Step 5: Solve for x
    x = 1,109,674,931.28/37,405.80
  6. Step 6: Final answer
    x = 29,665.85

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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.