Home / 28,338.30-39,111.75-16,408.22

Finding the Fourth Proportional to 28,338.30, 39,111.75 and 16,408.22

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Solution

The fourth proportional to 28,338.30, 39,111.75 and 16,408.22 is: 22,646.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.30 : 39,111.75 = 16,408.22 : x
  2. Step 2: Convert to fraction form
    28,338.30/39,111.75 = 16,408.22/x
  3. Step 3: Cross multiply
    28,338.30x = 39,111.75 × 16,408.22
  4. Step 4: Simplify right side
    28,338.30x = 641,754,003.03
  5. Step 5: Solve for x
    x = 641,754,003.03/28,338.30
  6. Step 6: Final answer
    x = 22,646.17

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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.