Home / 30,540.09-45,784.15-13,894.29

Finding the Fourth Proportional to 30,540.09, 45,784.15 and 13,894.29

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Solution

The fourth proportional to 30,540.09, 45,784.15 and 13,894.29 is: 20,829.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,540.09 : 45,784.15 = 13,894.29 : x
  2. Step 2: Convert to fraction form
    30,540.09/45,784.15 = 13,894.29/x
  3. Step 3: Cross multiply
    30,540.09x = 45,784.15 × 13,894.29
  4. Step 4: Simplify right side
    30,540.09x = 636,138,257.50
  5. Step 5: Solve for x
    x = 636,138,257.50/30,540.09
  6. Step 6: Final answer
    x = 20,829.61

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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.