Home / 28,169.56-42,256.65-9,449.77

Finding the Fourth Proportional to 28,169.56, 42,256.65 and 9,449.77

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Solution

The fourth proportional to 28,169.56, 42,256.65 and 9,449.77 is: 14,175.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169.56 : 42,256.65 = 9,449.77 : x
  2. Step 2: Convert to fraction form
    28,169.56/42,256.65 = 9,449.77/x
  3. Step 3: Cross multiply
    28,169.56x = 42,256.65 × 9,449.77
  4. Step 4: Simplify right side
    28,169.56x = 399,315,623.47
  5. Step 5: Solve for x
    x = 399,315,623.47/28,169.56
  6. Step 6: Final answer
    x = 14,175.43

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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.