Home / 31,221.58-43,085.10-17,074.40

Finding the Fourth Proportional to 31,221.58, 43,085.10 and 17,074.40

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Solution

The fourth proportional to 31,221.58, 43,085.10 and 17,074.40 is: 23,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.58 : 43,085.10 = 17,074.40 : x
  2. Step 2: Convert to fraction form
    31,221.58/43,085.10 = 17,074.40/x
  3. Step 3: Cross multiply
    31,221.58x = 43,085.10 × 17,074.40
  4. Step 4: Simplify right side
    31,221.58x = 735,652,231.44
  5. Step 5: Solve for x
    x = 735,652,231.44/31,221.58
  6. Step 6: Final answer
    x = 23,562.30

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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.