Home / 31,026.60-42,815.48-16,879.14

Finding the Fourth Proportional to 31,026.60, 42,815.48 and 16,879.14

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Solution

The fourth proportional to 31,026.60, 42,815.48 and 16,879.14 is: 23,292.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,026.60 : 42,815.48 = 16,879.14 : x
  2. Step 2: Convert to fraction form
    31,026.60/42,815.48 = 16,879.14/x
  3. Step 3: Cross multiply
    31,026.60x = 42,815.48 × 16,879.14
  4. Step 4: Simplify right side
    31,026.60x = 722,688,481.09
  5. Step 5: Solve for x
    x = 722,688,481.09/31,026.60
  6. Step 6: Final answer
    x = 23,292.55

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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.