Home / 37,129.64-51,238.98-21,214.05

Finding the Fourth Proportional to 37,129.64, 51,238.98 and 21,214.05

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Solution

The fourth proportional to 37,129.64, 51,238.98 and 21,214.05 is: 29,275.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,129.64 : 51,238.98 = 21,214.05 : x
  2. Step 2: Convert to fraction form
    37,129.64/51,238.98 = 21,214.05/x
  3. Step 3: Cross multiply
    37,129.64x = 51,238.98 × 21,214.05
  4. Step 4: Simplify right side
    37,129.64x = 1,086,986,379.74
  5. Step 5: Solve for x
    x = 1,086,986,379.74/37,129.64
  6. Step 6: Final answer
    x = 29,275.43

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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.