Home / 34,665.12-51,997.64-13,903.20

Finding the Fourth Proportional to 34,665.12, 51,997.64 and 13,903.20

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Solution

The fourth proportional to 34,665.12, 51,997.64 and 13,903.20 is: 20,854.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,665.12 : 51,997.64 = 13,903.20 : x
  2. Step 2: Convert to fraction form
    34,665.12/51,997.64 = 13,903.20/x
  3. Step 3: Cross multiply
    34,665.12x = 51,997.64 × 13,903.20
  4. Step 4: Simplify right side
    34,665.12x = 722,933,588.45
  5. Step 5: Solve for x
    x = 722,933,588.45/34,665.12
  6. Step 6: Final answer
    x = 20,854.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.