Home / 28,835.02-43,257.15-9,118.20

Finding the Fourth Proportional to 28,835.02, 43,257.15 and 9,118.20

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Solution

The fourth proportional to 28,835.02, 43,257.15 and 9,118.20 is: 13,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,835.02 : 43,257.15 = 9,118.20 : x
  2. Step 2: Convert to fraction form
    28,835.02/43,257.15 = 9,118.20/x
  3. Step 3: Cross multiply
    28,835.02x = 43,257.15 × 9,118.20
  4. Step 4: Simplify right side
    28,835.02x = 394,427,345.13
  5. Step 5: Solve for x
    x = 394,427,345.13/28,835.02
  6. Step 6: Final answer
    x = 13,678.76

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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.