Home / 21,212.53-31,823.90-14,984.66

Finding the Fourth Proportional to 21,212.53, 31,823.90 and 14,984.66

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Solution

The fourth proportional to 21,212.53, 31,823.90 and 14,984.66 is: 22,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212.53 : 31,823.90 = 14,984.66 : x
  2. Step 2: Convert to fraction form
    21,212.53/31,823.90 = 14,984.66/x
  3. Step 3: Cross multiply
    21,212.53x = 31,823.90 × 14,984.66
  4. Step 4: Simplify right side
    21,212.53x = 476,870,321.37
  5. Step 5: Solve for x
    x = 476,870,321.37/21,212.53
  6. Step 6: Final answer
    x = 22,480.60

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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.