Home / 28,529.68-39,372.78-15,954.52

Finding the Fourth Proportional to 28,529.68, 39,372.78 and 15,954.52

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Solution

The fourth proportional to 28,529.68, 39,372.78 and 15,954.52 is: 22,018.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.68 : 39,372.78 = 15,954.52 : x
  2. Step 2: Convert to fraction form
    28,529.68/39,372.78 = 15,954.52/x
  3. Step 3: Cross multiply
    28,529.68x = 39,372.78 × 15,954.52
  4. Step 4: Simplify right side
    28,529.68x = 628,173,805.97
  5. Step 5: Solve for x
    x = 628,173,805.97/28,529.68
  6. Step 6: Final answer
    x = 22,018.26

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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.