Home / 31,632.12-43,652.37-18,203.13

Finding the Fourth Proportional to 31,632.12, 43,652.37 and 18,203.13

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Solution

The fourth proportional to 31,632.12, 43,652.37 and 18,203.13 is: 25,120.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,632.12 : 43,652.37 = 18,203.13 : x
  2. Step 2: Convert to fraction form
    31,632.12/43,652.37 = 18,203.13/x
  3. Step 3: Cross multiply
    31,632.12x = 43,652.37 × 18,203.13
  4. Step 4: Simplify right side
    31,632.12x = 794,609,731.79
  5. Step 5: Solve for x
    x = 794,609,731.79/31,632.12
  6. Step 6: Final answer
    x = 25,120.34

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Half scale
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Double scale
Find fourth proportional to 31,633.12, 43,653.75 and 18,204.13
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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.