Home / 28,699.11-39,604.32-15,952.23

Finding the Fourth Proportional to 28,699.11, 39,604.32 and 15,952.23

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Solution

The fourth proportional to 28,699.11, 39,604.32 and 15,952.23 is: 22,013.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.11 : 39,604.32 = 15,952.23 : x
  2. Step 2: Convert to fraction form
    28,699.11/39,604.32 = 15,952.23/x
  3. Step 3: Cross multiply
    28,699.11x = 39,604.32 × 15,952.23
  4. Step 4: Simplify right side
    28,699.11x = 631,777,221.63
  5. Step 5: Solve for x
    x = 631,777,221.63/28,699.11
  6. Step 6: Final answer
    x = 22,013.83

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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.