Home / 28,877.58-43,330.14-15,729.66

Finding the Fourth Proportional to 28,877.58, 43,330.14 and 15,729.66

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Solution

The fourth proportional to 28,877.58, 43,330.14 and 15,729.66 is: 23,601.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.58 : 43,330.14 = 15,729.66 : x
  2. Step 2: Convert to fraction form
    28,877.58/43,330.14 = 15,729.66/x
  3. Step 3: Cross multiply
    28,877.58x = 43,330.14 × 15,729.66
  4. Step 4: Simplify right side
    28,877.58x = 681,568,369.95
  5. Step 5: Solve for x
    x = 681,568,369.95/28,877.58
  6. Step 6: Final answer
    x = 23,601.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.