Home / 31,804.78-43,909.65-19,884.28

Finding the Fourth Proportional to 31,804.78, 43,909.65 and 19,884.28

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Solution

The fourth proportional to 31,804.78, 43,909.65 and 19,884.28 is: 27,452.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,804.78 : 43,909.65 = 19,884.28 : x
  2. Step 2: Convert to fraction form
    31,804.78/43,909.65 = 19,884.28/x
  3. Step 3: Cross multiply
    31,804.78x = 43,909.65 × 19,884.28
  4. Step 4: Simplify right side
    31,804.78x = 873,111,775.30
  5. Step 5: Solve for x
    x = 873,111,775.30/31,804.78
  6. Step 6: Final answer
    x = 27,452.22

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1.5x scale

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.