Home / 31,193.21-43,051.02-19,859.09

Finding the Fourth Proportional to 31,193.21, 43,051.02 and 19,859.09

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Solution

The fourth proportional to 31,193.21, 43,051.02 and 19,859.09 is: 27,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,193.21 : 43,051.02 = 19,859.09 : x
  2. Step 2: Convert to fraction form
    31,193.21/43,051.02 = 19,859.09/x
  3. Step 3: Cross multiply
    31,193.21x = 43,051.02 × 19,859.09
  4. Step 4: Simplify right side
    31,193.21x = 854,953,865.52
  5. Step 5: Solve for x
    x = 854,953,865.52/31,193.21
  6. Step 6: Final answer
    x = 27,408.33

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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.