Home / 28,351.24-42,525.16-12,551.65

Finding the Fourth Proportional to 28,351.24, 42,525.16 and 12,551.65

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Solution

The fourth proportional to 28,351.24, 42,525.16 and 12,551.65 is: 18,826.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.24 : 42,525.16 = 12,551.65 : x
  2. Step 2: Convert to fraction form
    28,351.24/42,525.16 = 12,551.65/x
  3. Step 3: Cross multiply
    28,351.24x = 42,525.16 × 12,551.65
  4. Step 4: Simplify right side
    28,351.24x = 533,760,786.82
  5. Step 5: Solve for x
    x = 533,760,786.82/28,351.24
  6. Step 6: Final answer
    x = 18,826.72

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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.