Home / 31,230.47-43,104.77-19,897.26

Finding the Fourth Proportional to 31,230.47, 43,104.77 and 19,897.26

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Solution

The fourth proportional to 31,230.47, 43,104.77 and 19,897.26 is: 27,462.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,230.47 : 43,104.77 = 19,897.26 : x
  2. Step 2: Convert to fraction form
    31,230.47/43,104.77 = 19,897.26/x
  3. Step 3: Cross multiply
    31,230.47x = 43,104.77 × 19,897.26
  4. Step 4: Simplify right side
    31,230.47x = 857,666,716.44
  5. Step 5: Solve for x
    x = 857,666,716.44/31,230.47
  6. Step 6: Final answer
    x = 27,462.50

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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.