Home / 14,619.20-21,929-4,758.52

Finding the Fourth Proportional to 14,619.20, 21,929 and 4,758.52

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Solution

The fourth proportional to 14,619.20, 21,929 and 4,758.52 is: 7,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,619.20 : 21,929 = 4,758.52 : x
  2. Step 2: Convert to fraction form
    14,619.20/21,929 = 4,758.52/x
  3. Step 3: Cross multiply
    14,619.20x = 21,929 × 4,758.52
  4. Step 4: Simplify right side
    14,619.20x = 104,349,585.08
  5. Step 5: Solve for x
    x = 104,349,585.08/14,619.20
  6. Step 6: Final answer
    x = 7,137.85

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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.