Home / 19,129.42-28,640.91-9,749.21

Finding the Fourth Proportional to 19,129.42, 28,640.91 and 9,749.21

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Solution

The fourth proportional to 19,129.42, 28,640.91 and 9,749.21 is: 14,596.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.42 : 28,640.91 = 9,749.21 : x
  2. Step 2: Convert to fraction form
    19,129.42/28,640.91 = 9,749.21/x
  3. Step 3: Cross multiply
    19,129.42x = 28,640.91 × 9,749.21
  4. Step 4: Simplify right side
    19,129.42x = 279,226,246.18
  5. Step 5: Solve for x
    x = 279,226,246.18/19,129.42
  6. Step 6: Final answer
    x = 14,596.69

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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.