Home / 19,991.17-29,983.67-6,840.52

Finding the Fourth Proportional to 19,991.17, 29,983.67 and 6,840.52

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Solution

The fourth proportional to 19,991.17, 29,983.67 and 6,840.52 is: 10,259.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.17 : 29,983.67 = 6,840.52 : x
  2. Step 2: Convert to fraction form
    19,991.17/29,983.67 = 6,840.52/x
  3. Step 3: Cross multiply
    19,991.17x = 29,983.67 × 6,840.52
  4. Step 4: Simplify right side
    19,991.17x = 205,103,810.80
  5. Step 5: Solve for x
    x = 205,103,810.80/19,991.17
  6. Step 6: Final answer
    x = 10,259.72

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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.