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Finding the Fourth Proportional to 22,391.80, 33,501.30 and 14,615.80

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Solution

The fourth proportional to 22,391.80, 33,501.30 and 14,615.80 is: 21,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,391.80 : 33,501.30 = 14,615.80 : x
  2. Step 2: Convert to fraction form
    22,391.80/33,501.30 = 14,615.80/x
  3. Step 3: Cross multiply
    22,391.80x = 33,501.30 × 14,615.80
  4. Step 4: Simplify right side
    22,391.80x = 489,648,300.54
  5. Step 5: Solve for x
    x = 489,648,300.54/22,391.80
  6. Step 6: Final answer
    x = 21,867.30

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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.