Home / 28,709.12-43,065.84-7,649.07

Finding the Fourth Proportional to 28,709.12, 43,065.84 and 7,649.07

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Solution

The fourth proportional to 28,709.12, 43,065.84 and 7,649.07 is: 11,474.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.12 : 43,065.84 = 7,649.07 : x
  2. Step 2: Convert to fraction form
    28,709.12/43,065.84 = 7,649.07/x
  3. Step 3: Cross multiply
    28,709.12x = 43,065.84 × 7,649.07
  4. Step 4: Simplify right side
    28,709.12x = 329,413,624.77
  5. Step 5: Solve for x
    x = 329,413,624.77/28,709.12
  6. Step 6: Final answer
    x = 11,474.18

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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.