Home / 30,655.92-45,929.88-21,845.28

Finding the Fourth Proportional to 30,655.92, 45,929.88 and 21,845.28

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Solution

The fourth proportional to 30,655.92, 45,929.88 and 21,845.28 is: 32,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.92 : 45,929.88 = 21,845.28 : x
  2. Step 2: Convert to fraction form
    30,655.92/45,929.88 = 21,845.28/x
  3. Step 3: Cross multiply
    30,655.92x = 45,929.88 × 21,845.28
  4. Step 4: Simplify right side
    30,655.92x = 1,003,351,088.97
  5. Step 5: Solve for x
    x = 1,003,351,088.97/30,655.92
  6. Step 6: Final answer
    x = 32,729.44

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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.