Home / 31,221.78-46,775.96-18,046.32

Finding the Fourth Proportional to 31,221.78, 46,775.96 and 18,046.32

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Solution

The fourth proportional to 31,221.78, 46,775.96 and 18,046.32 is: 27,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.78 : 46,775.96 = 18,046.32 : x
  2. Step 2: Convert to fraction form
    31,221.78/46,775.96 = 18,046.32/x
  3. Step 3: Cross multiply
    31,221.78x = 46,775.96 × 18,046.32
  4. Step 4: Simplify right side
    31,221.78x = 844,133,942.47
  5. Step 5: Solve for x
    x = 844,133,942.47/31,221.78
  6. Step 6: Final answer
    x = 27,036.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.