Home / 23,149.16-31,945.56-12,538.64

Finding the Fourth Proportional to 23,149.16, 31,945.56 and 12,538.64

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Solution

The fourth proportional to 23,149.16, 31,945.56 and 12,538.64 is: 17,303.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,149.16 : 31,945.56 = 12,538.64 : x
  2. Step 2: Convert to fraction form
    23,149.16/31,945.56 = 12,538.64/x
  3. Step 3: Cross multiply
    23,149.16x = 31,945.56 × 12,538.64
  4. Step 4: Simplify right side
    23,149.16x = 400,553,876.44
  5. Step 5: Solve for x
    x = 400,553,876.44/23,149.16
  6. Step 6: Final answer
    x = 17,303.17

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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.