Home / 22,021.66-30,381.24-12,585.16

Finding the Fourth Proportional to 22,021.66, 30,381.24 and 12,585.16

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Solution

The fourth proportional to 22,021.66, 30,381.24 and 12,585.16 is: 17,362.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.66 : 30,381.24 = 12,585.16 : x
  2. Step 2: Convert to fraction form
    22,021.66/30,381.24 = 12,585.16/x
  3. Step 3: Cross multiply
    22,021.66x = 30,381.24 × 12,585.16
  4. Step 4: Simplify right side
    22,021.66x = 382,352,766.40
  5. Step 5: Solve for x
    x = 382,352,766.40/22,021.66
  6. Step 6: Final answer
    x = 17,362.58

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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.