Home / 28,530.07-42,805.24-12,733.67

Finding the Fourth Proportional to 28,530.07, 42,805.24 and 12,733.67

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Solution

The fourth proportional to 28,530.07, 42,805.24 and 12,733.67 is: 19,105.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530.07 : 42,805.24 = 12,733.67 : x
  2. Step 2: Convert to fraction form
    28,530.07/42,805.24 = 12,733.67/x
  3. Step 3: Cross multiply
    28,530.07x = 42,805.24 × 12,733.67
  4. Step 4: Simplify right side
    28,530.07x = 545,067,554.57
  5. Step 5: Solve for x
    x = 545,067,554.57/28,530.07
  6. Step 6: Final answer
    x = 19,105.02

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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.