Home / 28,837.86-43,254.66-13,855.69

Finding the Fourth Proportional to 28,837.86, 43,254.66 and 13,855.69

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Solution

The fourth proportional to 28,837.86, 43,254.66 and 13,855.69 is: 20,782.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,837.86 : 43,254.66 = 13,855.69 : x
  2. Step 2: Convert to fraction form
    28,837.86/43,254.66 = 13,855.69/x
  3. Step 3: Cross multiply
    28,837.86x = 43,254.66 × 13,855.69
  4. Step 4: Simplify right side
    28,837.86x = 599,323,160.02
  5. Step 5: Solve for x
    x = 599,323,160.02/28,837.86
  6. Step 6: Final answer
    x = 20,782.51

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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.