Home / 22,640.08-31,243.26-12,568.64

Finding the Fourth Proportional to 22,640.08, 31,243.26 and 12,568.64

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Solution

The fourth proportional to 22,640.08, 31,243.26 and 12,568.64 is: 17,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,640.08 : 31,243.26 = 12,568.64 : x
  2. Step 2: Convert to fraction form
    22,640.08/31,243.26 = 12,568.64/x
  3. Step 3: Cross multiply
    22,640.08x = 31,243.26 × 12,568.64
  4. Step 4: Simplify right side
    22,640.08x = 392,685,287.37
  5. Step 5: Solve for x
    x = 392,685,287.37/22,640.08
  6. Step 6: Final answer
    x = 17,344.70

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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.