Home / 19,640.20-29,460.30-13,822.76

Finding the Fourth Proportional to 19,640.20, 29,460.30 and 13,822.76

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Solution

The fourth proportional to 19,640.20, 29,460.30 and 13,822.76 is: 20,734.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.20 : 29,460.30 = 13,822.76 : x
  2. Step 2: Convert to fraction form
    19,640.20/29,460.30 = 13,822.76/x
  3. Step 3: Cross multiply
    19,640.20x = 29,460.30 × 13,822.76
  4. Step 4: Simplify right side
    19,640.20x = 407,222,656.43
  5. Step 5: Solve for x
    x = 407,222,656.43/19,640.20
  6. Step 6: Final answer
    x = 20,734.14

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1.5x scale

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.