Home / 31,023.06-42,811.38-16,875.60

Finding the Fourth Proportional to 31,023.06, 42,811.38 and 16,875.60

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Solution

The fourth proportional to 31,023.06, 42,811.38 and 16,875.60 is: 23,288.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,023.06 : 42,811.38 = 16,875.60 : x
  2. Step 2: Convert to fraction form
    31,023.06/42,811.38 = 16,875.60/x
  3. Step 3: Cross multiply
    31,023.06x = 42,811.38 × 16,875.60
  4. Step 4: Simplify right side
    31,023.06x = 722,467,724.33
  5. Step 5: Solve for x
    x = 722,467,724.33/31,023.06
  6. Step 6: Final answer
    x = 23,288.09

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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.