Home / 19,982.47-29,970.29-6,653.95

Finding the Fourth Proportional to 19,982.47, 29,970.29 and 6,653.95

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Solution

The fourth proportional to 19,982.47, 29,970.29 and 6,653.95 is: 9,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.47 : 29,970.29 = 6,653.95 : x
  2. Step 2: Convert to fraction form
    19,982.47/29,970.29 = 6,653.95/x
  3. Step 3: Cross multiply
    19,982.47x = 29,970.29 × 6,653.95
  4. Step 4: Simplify right side
    19,982.47x = 199,420,727.90
  5. Step 5: Solve for x
    x = 199,420,727.90/19,982.47
  6. Step 6: Final answer
    x = 9,979.78

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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.