Home / 19,612.45-29,418.77-4,821.37

Finding the Fourth Proportional to 19,612.45, 29,418.77 and 4,821.37

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Solution

The fourth proportional to 19,612.45, 29,418.77 and 4,821.37 is: 7,232.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.45 : 29,418.77 = 4,821.37 : x
  2. Step 2: Convert to fraction form
    19,612.45/29,418.77 = 4,821.37/x
  3. Step 3: Cross multiply
    19,612.45x = 29,418.77 × 4,821.37
  4. Step 4: Simplify right side
    19,612.45x = 141,838,775.11
  5. Step 5: Solve for x
    x = 141,838,775.11/19,612.45
  6. Step 6: Final answer
    x = 7,232.08

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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.