Home / 30,418.12-45,653.10-17,919.82

Finding the Fourth Proportional to 30,418.12, 45,653.10 and 17,919.82

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Solution

The fourth proportional to 30,418.12, 45,653.10 and 17,919.82 is: 26,895.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.12 : 45,653.10 = 17,919.82 : x
  2. Step 2: Convert to fraction form
    30,418.12/45,653.10 = 17,919.82/x
  3. Step 3: Cross multiply
    30,418.12x = 45,653.10 × 17,919.82
  4. Step 4: Simplify right side
    30,418.12x = 818,095,334.44
  5. Step 5: Solve for x
    x = 818,095,334.44/30,418.12
  6. Step 6: Final answer
    x = 26,895.00

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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.