Home / 31,795.79-43,878.36-19,866.04

Finding the Fourth Proportional to 31,795.79, 43,878.36 and 19,866.04

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Solution

The fourth proportional to 31,795.79, 43,878.36 and 19,866.04 is: 27,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,795.79 : 43,878.36 = 19,866.04 : x
  2. Step 2: Convert to fraction form
    31,795.79/43,878.36 = 19,866.04/x
  3. Step 3: Cross multiply
    31,795.79x = 43,878.36 × 19,866.04
  4. Step 4: Simplify right side
    31,795.79x = 871,689,265.26
  5. Step 5: Solve for x
    x = 871,689,265.26/31,795.79
  6. Step 6: Final answer
    x = 27,415.25

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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.