Home / 19,315.52-28,954.08-11,512.64

Finding the Fourth Proportional to 19,315.52, 28,954.08 and 11,512.64

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Solution

The fourth proportional to 19,315.52, 28,954.08 and 11,512.64 is: 17,257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.52 : 28,954.08 = 11,512.64 : x
  2. Step 2: Convert to fraction form
    19,315.52/28,954.08 = 11,512.64/x
  3. Step 3: Cross multiply
    19,315.52x = 28,954.08 × 11,512.64
  4. Step 4: Simplify right side
    19,315.52x = 333,337,899.57
  5. Step 5: Solve for x
    x = 333,337,899.57/19,315.52
  6. Step 6: Final answer
    x = 17,257.52

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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.