Home / 22,919.16-31,629.60-12,848.16

Finding the Fourth Proportional to 22,919.16, 31,629.60 and 12,848.16

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Solution

The fourth proportional to 22,919.16, 31,629.60 and 12,848.16 is: 17,731.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,919.16 : 31,629.60 = 12,848.16 : x
  2. Step 2: Convert to fraction form
    22,919.16/31,629.60 = 12,848.16/x
  3. Step 3: Cross multiply
    22,919.16x = 31,629.60 × 12,848.16
  4. Step 4: Simplify right side
    22,919.16x = 406,382,161.54
  5. Step 5: Solve for x
    x = 406,382,161.54/22,919.16
  6. Step 6: Final answer
    x = 17,731.11

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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.