Home / 31,562.58-43,570.66-20,082.20

Finding the Fourth Proportional to 31,562.58, 43,570.66 and 20,082.20

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Solution

The fourth proportional to 31,562.58, 43,570.66 and 20,082.20 is: 27,722.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,562.58 : 43,570.66 = 20,082.20 : x
  2. Step 2: Convert to fraction form
    31,562.58/43,570.66 = 20,082.20/x
  3. Step 3: Cross multiply
    31,562.58x = 43,570.66 × 20,082.20
  4. Step 4: Simplify right side
    31,562.58x = 874,994,708.25
  5. Step 5: Solve for x
    x = 874,994,708.25/31,562.58
  6. Step 6: Final answer
    x = 27,722.53

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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.