Home / 31,190.13-46,796.82-18,719.10

Finding the Fourth Proportional to 31,190.13, 46,796.82 and 18,719.10

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Solution

The fourth proportional to 31,190.13, 46,796.82 and 18,719.10 is: 28,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,190.13 : 46,796.82 = 18,719.10 : x
  2. Step 2: Convert to fraction form
    31,190.13/46,796.82 = 18,719.10/x
  3. Step 3: Cross multiply
    31,190.13x = 46,796.82 × 18,719.10
  4. Step 4: Simplify right side
    31,190.13x = 875,994,353.26
  5. Step 5: Solve for x
    x = 875,994,353.26/31,190.13
  6. Step 6: Final answer
    x = 28,085.63

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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.