Home / 37,129.47-51,238.76-21,213.87

Finding the Fourth Proportional to 37,129.47, 51,238.76 and 21,213.87

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Solution

The fourth proportional to 37,129.47, 51,238.76 and 21,213.87 is: 29,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,129.47 : 51,238.76 = 21,213.87 : x
  2. Step 2: Convert to fraction form
    37,129.47/51,238.76 = 21,213.87/x
  3. Step 3: Cross multiply
    37,129.47x = 51,238.76 × 21,213.87
  4. Step 4: Simplify right side
    37,129.47x = 1,086,972,287.53
  5. Step 5: Solve for x
    x = 1,086,972,287.53/37,129.47
  6. Step 6: Final answer
    x = 29,275.19

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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.