Home / 31,368.06-43,287.48-17,220.96

Finding the Fourth Proportional to 31,368.06, 43,287.48 and 17,220.96

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Solution

The fourth proportional to 31,368.06, 43,287.48 and 17,220.96 is: 23,764.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,368.06 : 43,287.48 = 17,220.96 : x
  2. Step 2: Convert to fraction form
    31,368.06/43,287.48 = 17,220.96/x
  3. Step 3: Cross multiply
    31,368.06x = 43,287.48 × 17,220.96
  4. Step 4: Simplify right side
    31,368.06x = 745,451,961.58
  5. Step 5: Solve for x
    x = 745,451,961.58/31,368.06
  6. Step 6: Final answer
    x = 23,764.68

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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.