Home / 34,408.60-51,564.30-21,221.80

Finding the Fourth Proportional to 34,408.60, 51,564.30 and 21,221.80

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Solution

The fourth proportional to 34,408.60, 51,564.30 and 21,221.80 is: 31,802.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,408.60 : 51,564.30 = 21,221.80 : x
  2. Step 2: Convert to fraction form
    34,408.60/51,564.30 = 21,221.80/x
  3. Step 3: Cross multiply
    34,408.60x = 51,564.30 × 21,221.80
  4. Step 4: Simplify right side
    34,408.60x = 1,094,287,261.74
  5. Step 5: Solve for x
    x = 1,094,287,261.74/34,408.60
  6. Step 6: Final answer
    x = 31,802.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.