Home / 31,561.39-43,535.50-18,806.19

Finding the Fourth Proportional to 31,561.39, 43,535.50 and 18,806.19

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Solution

The fourth proportional to 31,561.39, 43,535.50 and 18,806.19 is: 25,941.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,561.39 : 43,535.50 = 18,806.19 : x
  2. Step 2: Convert to fraction form
    31,561.39/43,535.50 = 18,806.19/x
  3. Step 3: Cross multiply
    31,561.39x = 43,535.50 × 18,806.19
  4. Step 4: Simplify right side
    31,561.39x = 818,736,884.75
  5. Step 5: Solve for x
    x = 818,736,884.75/31,561.39
  6. Step 6: Final answer
    x = 25,941.09

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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.