Home / 30,578.24-45,856.32-13,049.28

Finding the Fourth Proportional to 30,578.24, 45,856.32 and 13,049.28

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Solution

The fourth proportional to 30,578.24, 45,856.32 and 13,049.28 is: 19,569.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578.24 : 45,856.32 = 13,049.28 : x
  2. Step 2: Convert to fraction form
    30,578.24/45,856.32 = 13,049.28/x
  3. Step 3: Cross multiply
    30,578.24x = 45,856.32 × 13,049.28
  4. Step 4: Simplify right side
    30,578.24x = 598,391,959.45
  5. Step 5: Solve for x
    x = 598,391,959.45/30,578.24
  6. Step 6: Final answer
    x = 19,569.21

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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.