Home / 37,138.75-51,250.51-21,223.20

Finding the Fourth Proportional to 37,138.75, 51,250.51 and 21,223.20

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Solution

The fourth proportional to 37,138.75, 51,250.51 and 21,223.20 is: 29,287.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,138.75 : 51,250.51 = 21,223.20 : x
  2. Step 2: Convert to fraction form
    37,138.75/51,250.51 = 21,223.20/x
  3. Step 3: Cross multiply
    37,138.75x = 51,250.51 × 21,223.20
  4. Step 4: Simplify right side
    37,138.75x = 1,087,699,823.83
  5. Step 5: Solve for x
    x = 1,087,699,823.83/37,138.75
  6. Step 6: Final answer
    x = 29,287.46

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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.