Home / 30,540.24-45,767.16-12,992.40

Finding the Fourth Proportional to 30,540.24, 45,767.16 and 12,992.40

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Solution

The fourth proportional to 30,540.24, 45,767.16 and 12,992.40 is: 19,470.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,540.24 : 45,767.16 = 12,992.40 : x
  2. Step 2: Convert to fraction form
    30,540.24/45,767.16 = 12,992.40/x
  3. Step 3: Cross multiply
    30,540.24x = 45,767.16 × 12,992.40
  4. Step 4: Simplify right side
    30,540.24x = 594,625,249.58
  5. Step 5: Solve for x
    x = 594,625,249.58/30,540.24
  6. Step 6: Final answer
    x = 19,470.22

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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.