Home / 28,945.15-43,412.56-15,611.94

Finding the Fourth Proportional to 28,945.15, 43,412.56 and 15,611.94

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Solution

The fourth proportional to 28,945.15, 43,412.56 and 15,611.94 is: 23,415.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.15 : 43,412.56 = 15,611.94 : x
  2. Step 2: Convert to fraction form
    28,945.15/43,412.56 = 15,611.94/x
  3. Step 3: Cross multiply
    28,945.15x = 43,412.56 × 15,611.94
  4. Step 4: Simplify right side
    28,945.15x = 677,754,242.94
  5. Step 5: Solve for x
    x = 677,754,242.94/28,945.15
  6. Step 6: Final answer
    x = 23,415.12

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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.