Home / 31,921.99-47,830.32-18,557.48

Finding the Fourth Proportional to 31,921.99, 47,830.32 and 18,557.48

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Solution

The fourth proportional to 31,921.99, 47,830.32 and 18,557.48 is: 27,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.99 : 47,830.32 = 18,557.48 : x
  2. Step 2: Convert to fraction form
    31,921.99/47,830.32 = 18,557.48/x
  3. Step 3: Cross multiply
    31,921.99x = 47,830.32 × 18,557.48
  4. Step 4: Simplify right side
    31,921.99x = 887,610,326.37
  5. Step 5: Solve for x
    x = 887,610,326.37/31,921.99
  6. Step 6: Final answer
    x = 27,805.61

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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.