Home / 31,742.39-43,809.35-20,262.26

Finding the Fourth Proportional to 31,742.39, 43,809.35 and 20,262.26

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Solution

The fourth proportional to 31,742.39, 43,809.35 and 20,262.26 is: 27,965.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.39 : 43,809.35 = 20,262.26 : x
  2. Step 2: Convert to fraction form
    31,742.39/43,809.35 = 20,262.26/x
  3. Step 3: Cross multiply
    31,742.39x = 43,809.35 × 20,262.26
  4. Step 4: Simplify right side
    31,742.39x = 887,676,119.77
  5. Step 5: Solve for x
    x = 887,676,119.77/31,742.39
  6. Step 6: Final answer
    x = 27,965.01

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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.