Home / 30,361.20-45,518.10-19,265.82

Finding the Fourth Proportional to 30,361.20, 45,518.10 and 19,265.82

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Solution

The fourth proportional to 30,361.20, 45,518.10 and 19,265.82 is: 28,883.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361.20 : 45,518.10 = 19,265.82 : x
  2. Step 2: Convert to fraction form
    30,361.20/45,518.10 = 19,265.82/x
  3. Step 3: Cross multiply
    30,361.20x = 45,518.10 × 19,265.82
  4. Step 4: Simplify right side
    30,361.20x = 876,943,521.34
  5. Step 5: Solve for x
    x = 876,943,521.34/30,361.20
  6. Step 6: Final answer
    x = 28,883.69

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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.