Home / 28,708.46-39,618.20-15,962.70

Finding the Fourth Proportional to 28,708.46, 39,618.20 and 15,962.70

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Solution

The fourth proportional to 28,708.46, 39,618.20 and 15,962.70 is: 22,028.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.46 : 39,618.20 = 15,962.70 : x
  2. Step 2: Convert to fraction form
    28,708.46/39,618.20 = 15,962.70/x
  3. Step 3: Cross multiply
    28,708.46x = 39,618.20 × 15,962.70
  4. Step 4: Simplify right side
    28,708.46x = 632,413,441.14
  5. Step 5: Solve for x
    x = 632,413,441.14/28,708.46
  6. Step 6: Final answer
    x = 22,028.82

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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.