Home / 28,875.86-43,319.26-9,159.38

Finding the Fourth Proportional to 28,875.86, 43,319.26 and 9,159.38

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Solution

The fourth proportional to 28,875.86, 43,319.26 and 9,159.38 is: 13,740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.86 : 43,319.26 = 9,159.38 : x
  2. Step 2: Convert to fraction form
    28,875.86/43,319.26 = 9,159.38/x
  3. Step 3: Cross multiply
    28,875.86x = 43,319.26 × 9,159.38
  4. Step 4: Simplify right side
    28,875.86x = 396,777,563.66
  5. Step 5: Solve for x
    x = 396,777,563.66/28,875.86
  6. Step 6: Final answer
    x = 13,740.81

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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.