Home / 37,520.10-51,778.71-21,605.22

Finding the Fourth Proportional to 37,520.10, 51,778.71 and 21,605.22

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Solution

The fourth proportional to 37,520.10, 51,778.71 and 21,605.22 is: 29,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,520.10 : 51,778.71 = 21,605.22 : x
  2. Step 2: Convert to fraction form
    37,520.10/51,778.71 = 21,605.22/x
  3. Step 3: Cross multiply
    37,520.10x = 51,778.71 × 21,605.22
  4. Step 4: Simplify right side
    37,520.10x = 1,118,690,420.87
  5. Step 5: Solve for x
    x = 1,118,690,420.87/37,520.10
  6. Step 6: Final answer
    x = 29,815.76

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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.