Home / 30,578.13-45,793.31-17,390.52

Finding the Fourth Proportional to 30,578.13, 45,793.31 and 17,390.52

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Solution

The fourth proportional to 30,578.13, 45,793.31 and 17,390.52 is: 26,043.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578.13 : 45,793.31 = 17,390.52 : x
  2. Step 2: Convert to fraction form
    30,578.13/45,793.31 = 17,390.52/x
  3. Step 3: Cross multiply
    30,578.13x = 45,793.31 × 17,390.52
  4. Step 4: Simplify right side
    30,578.13x = 796,369,386.47
  5. Step 5: Solve for x
    x = 796,369,386.47/30,578.13
  6. Step 6: Final answer
    x = 26,043.76

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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.