Home / 28,800.11-43,147.53-20,883.01

Finding the Fourth Proportional to 28,800.11, 43,147.53 and 20,883.01

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Solution

The fourth proportional to 28,800.11, 43,147.53 and 20,883.01 is: 31,286.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800.11 : 43,147.53 = 20,883.01 : x
  2. Step 2: Convert to fraction form
    28,800.11/43,147.53 = 20,883.01/x
  3. Step 3: Cross multiply
    28,800.11x = 43,147.53 × 20,883.01
  4. Step 4: Simplify right side
    28,800.11x = 901,050,300.47
  5. Step 5: Solve for x
    x = 901,050,300.47/28,800.11
  6. Step 6: Final answer
    x = 31,286.35

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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.