Home / 28,267.68-39,009.42-15,692.52

Finding the Fourth Proportional to 28,267.68, 39,009.42 and 15,692.52

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Solution

The fourth proportional to 28,267.68, 39,009.42 and 15,692.52 is: 21,655.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,267.68 : 39,009.42 = 15,692.52 : x
  2. Step 2: Convert to fraction form
    28,267.68/39,009.42 = 15,692.52/x
  3. Step 3: Cross multiply
    28,267.68x = 39,009.42 × 15,692.52
  4. Step 4: Simplify right side
    28,267.68x = 612,156,103.54
  5. Step 5: Solve for x
    x = 612,156,103.54/28,267.68
  6. Step 6: Final answer
    x = 21,655.69

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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.