Home / 19,514.12-29,212.86-13,280.36

Finding the Fourth Proportional to 19,514.12, 29,212.86 and 13,280.36

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Solution

The fourth proportional to 19,514.12, 29,212.86 and 13,280.36 is: 19,880.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,514.12 : 29,212.86 = 13,280.36 : x
  2. Step 2: Convert to fraction form
    19,514.12/29,212.86 = 13,280.36/x
  3. Step 3: Cross multiply
    19,514.12x = 29,212.86 × 13,280.36
  4. Step 4: Simplify right side
    19,514.12x = 387,957,297.43
  5. Step 5: Solve for x
    x = 387,957,297.43/19,514.12
  6. Step 6: Final answer
    x = 19,880.85

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1.5x scale

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.