Home / 19,983.47-29,971.79-6,654.95

Finding the Fourth Proportional to 19,983.47, 29,971.79 and 6,654.95

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Solution

The fourth proportional to 19,983.47, 29,971.79 and 6,654.95 is: 9,981.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.47 : 29,971.79 = 6,654.95 : x
  2. Step 2: Convert to fraction form
    19,983.47/29,971.79 = 6,654.95/x
  3. Step 3: Cross multiply
    19,983.47x = 29,971.79 × 6,654.95
  4. Step 4: Simplify right side
    19,983.47x = 199,460,763.86
  5. Step 5: Solve for x
    x = 199,460,763.86/19,983.47
  6. Step 6: Final answer
    x = 9,981.29

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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.