Home / 19,811.02-29,718.40-5,579.44

Finding the Fourth Proportional to 19,811.02, 29,718.40 and 5,579.44

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Solution

The fourth proportional to 19,811.02, 29,718.40 and 5,579.44 is: 8,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.02 : 29,718.40 = 5,579.44 : x
  2. Step 2: Convert to fraction form
    19,811.02/29,718.40 = 5,579.44/x
  3. Step 3: Cross multiply
    19,811.02x = 29,718.40 × 5,579.44
  4. Step 4: Simplify right side
    19,811.02x = 165,812,029.70
  5. Step 5: Solve for x
    x = 165,812,029.70/19,811.02
  6. Step 6: Final answer
    x = 8,369.69

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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.