Home / 20,341.52-30,563.40-12,949.28

Finding the Fourth Proportional to 20,341.52, 30,563.40 and 12,949.28

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Solution

The fourth proportional to 20,341.52, 30,563.40 and 12,949.28 is: 19,456.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.52 : 30,563.40 = 12,949.28 : x
  2. Step 2: Convert to fraction form
    20,341.52/30,563.40 = 12,949.28/x
  3. Step 3: Cross multiply
    20,341.52x = 30,563.40 × 12,949.28
  4. Step 4: Simplify right side
    20,341.52x = 395,774,024.35
  5. Step 5: Solve for x
    x = 395,774,024.35/20,341.52
  6. Step 6: Final answer
    x = 19,456.46

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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.