Home / 19,820.14-29,734.86-5,780.44

Finding the Fourth Proportional to 19,820.14, 29,734.86 and 5,780.44

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Solution

The fourth proportional to 19,820.14, 29,734.86 and 5,780.44 is: 8,672.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.14 : 29,734.86 = 5,780.44 : x
  2. Step 2: Convert to fraction form
    19,820.14/29,734.86 = 5,780.44/x
  3. Step 3: Cross multiply
    19,820.14x = 29,734.86 × 5,780.44
  4. Step 4: Simplify right side
    19,820.14x = 171,880,574.14
  5. Step 5: Solve for x
    x = 171,880,574.14/19,820.14
  6. Step 6: Final answer
    x = 8,672.02

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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.