Home / 30,087.92-45,131.75-12,326.82

Finding the Fourth Proportional to 30,087.92, 45,131.75 and 12,326.82

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Solution

The fourth proportional to 30,087.92, 45,131.75 and 12,326.82 is: 18,490.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,087.92 : 45,131.75 = 12,326.82 : x
  2. Step 2: Convert to fraction form
    30,087.92/45,131.75 = 12,326.82/x
  3. Step 3: Cross multiply
    30,087.92x = 45,131.75 × 12,326.82
  4. Step 4: Simplify right side
    30,087.92x = 556,330,773.88
  5. Step 5: Solve for x
    x = 556,330,773.88/30,087.92
  6. Step 6: Final answer
    x = 18,490.17

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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.