Home / 37,137.50-51,252.45-21,221.60

Finding the Fourth Proportional to 37,137.50, 51,252.45 and 21,221.60

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Solution

The fourth proportional to 37,137.50, 51,252.45 and 21,221.60 is: 29,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,137.50 : 51,252.45 = 21,221.60 : x
  2. Step 2: Convert to fraction form
    37,137.50/51,252.45 = 21,221.60/x
  3. Step 3: Cross multiply
    37,137.50x = 51,252.45 × 21,221.60
  4. Step 4: Simplify right side
    37,137.50x = 1,087,658,992.92
  5. Step 5: Solve for x
    x = 1,087,658,992.92/37,137.50
  6. Step 6: Final answer
    x = 29,287.35

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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.