Home / 31,190.11-46,717.37-19,346.79

Finding the Fourth Proportional to 31,190.11, 46,717.37 and 19,346.79

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Solution

The fourth proportional to 31,190.11, 46,717.37 and 19,346.79 is: 28,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,190.11 : 46,717.37 = 19,346.79 : x
  2. Step 2: Convert to fraction form
    31,190.11/46,717.37 = 19,346.79/x
  3. Step 3: Cross multiply
    31,190.11x = 46,717.37 × 19,346.79
  4. Step 4: Simplify right side
    31,190.11x = 903,831,050.01
  5. Step 5: Solve for x
    x = 903,831,050.01/31,190.11
  6. Step 6: Final answer
    x = 28,978.13

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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.