Home / 22,217.95-30,661.59-12,147.06

Finding the Fourth Proportional to 22,217.95, 30,661.59 and 12,147.06

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Solution

The fourth proportional to 22,217.95, 30,661.59 and 12,147.06 is: 16,763.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.95 : 30,661.59 = 12,147.06 : x
  2. Step 2: Convert to fraction form
    22,217.95/30,661.59 = 12,147.06/x
  3. Step 3: Cross multiply
    22,217.95x = 30,661.59 × 12,147.06
  4. Step 4: Simplify right side
    22,217.95x = 372,448,173.43
  5. Step 5: Solve for x
    x = 372,448,173.43/22,217.95
  6. Step 6: Final answer
    x = 16,763.39

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Half scale
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Double scale
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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.