Home / 37,138.74-51,254.28-21,223.86

Finding the Fourth Proportional to 37,138.74, 51,254.28 and 21,223.86

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Solution

The fourth proportional to 37,138.74, 51,254.28 and 21,223.86 is: 29,290.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,138.74 : 51,254.28 = 21,223.86 : x
  2. Step 2: Convert to fraction form
    37,138.74/51,254.28 = 21,223.86/x
  3. Step 3: Cross multiply
    37,138.74x = 51,254.28 × 21,223.86
  4. Step 4: Simplify right side
    37,138.74x = 1,087,813,663.12
  5. Step 5: Solve for x
    x = 1,087,813,663.12/37,138.74
  6. Step 6: Final answer
    x = 29,290.54

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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.