Home / 28,750.29-43,121.77-21,365.52

Finding the Fourth Proportional to 28,750.29, 43,121.77 and 21,365.52

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Solution

The fourth proportional to 28,750.29, 43,121.77 and 21,365.52 is: 32,045.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,750.29 : 43,121.77 = 21,365.52 : x
  2. Step 2: Convert to fraction form
    28,750.29/43,121.77 = 21,365.52/x
  3. Step 3: Cross multiply
    28,750.29x = 43,121.77 × 21,365.52
  4. Step 4: Simplify right side
    28,750.29x = 921,319,039.37
  5. Step 5: Solve for x
    x = 921,319,039.37/28,750.29
  6. Step 6: Final answer
    x = 32,045.56

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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.