Home / 30,578.06-45,827.61-13,698.74

Finding the Fourth Proportional to 30,578.06, 45,827.61 and 13,698.74

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Solution

The fourth proportional to 30,578.06, 45,827.61 and 13,698.74 is: 20,530.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578.06 : 45,827.61 = 13,698.74 : x
  2. Step 2: Convert to fraction form
    30,578.06/45,827.61 = 13,698.74/x
  3. Step 3: Cross multiply
    30,578.06x = 45,827.61 × 13,698.74
  4. Step 4: Simplify right side
    30,578.06x = 627,780,514.21
  5. Step 5: Solve for x
    x = 627,780,514.21/30,578.06
  6. Step 6: Final answer
    x = 20,530.42

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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.