Home / 28,375.24-39,157.52-15,628.18

Finding the Fourth Proportional to 28,375.24, 39,157.52 and 15,628.18

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Solution

The fourth proportional to 28,375.24, 39,157.52 and 15,628.18 is: 21,566.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375.24 : 39,157.52 = 15,628.18 : x
  2. Step 2: Convert to fraction form
    28,375.24/39,157.52 = 15,628.18/x
  3. Step 3: Cross multiply
    28,375.24x = 39,157.52 × 15,628.18
  4. Step 4: Simplify right side
    28,375.24x = 611,960,692.77
  5. Step 5: Solve for x
    x = 611,960,692.77/28,375.24
  6. Step 6: Final answer
    x = 21,566.71

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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.