Home / 31,153.25-43,010.93-19,994.69

Finding the Fourth Proportional to 31,153.25, 43,010.93 and 19,994.69

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Solution

The fourth proportional to 31,153.25, 43,010.93 and 19,994.69 is: 27,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,153.25 : 43,010.93 = 19,994.69 : x
  2. Step 2: Convert to fraction form
    31,153.25/43,010.93 = 19,994.69/x
  3. Step 3: Cross multiply
    31,153.25x = 43,010.93 × 19,994.69
  4. Step 4: Simplify right side
    31,153.25x = 859,990,211.96
  5. Step 5: Solve for x
    x = 859,990,211.96/31,153.25
  6. Step 6: Final answer
    x = 27,605.15

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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.