Home / 19,217.48-28,840.79-12,962.66

Finding the Fourth Proportional to 19,217.48, 28,840.79 and 12,962.66

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Solution

The fourth proportional to 19,217.48, 28,840.79 and 12,962.66 is: 19,453.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.48 : 28,840.79 = 12,962.66 : x
  2. Step 2: Convert to fraction form
    19,217.48/28,840.79 = 12,962.66/x
  3. Step 3: Cross multiply
    19,217.48x = 28,840.79 × 12,962.66
  4. Step 4: Simplify right side
    19,217.48x = 373,853,243.10
  5. Step 5: Solve for x
    x = 373,853,243.10/19,217.48
  6. Step 6: Final answer
    x = 19,453.82

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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.