Home / 19,812.02-29,719.90-5,580.44

Finding the Fourth Proportional to 19,812.02, 29,719.90 and 5,580.44

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Solution

The fourth proportional to 19,812.02, 29,719.90 and 5,580.44 is: 8,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.02 : 29,719.90 = 5,580.44 : x
  2. Step 2: Convert to fraction form
    19,812.02/29,719.90 = 5,580.44/x
  3. Step 3: Cross multiply
    19,812.02x = 29,719.90 × 5,580.44
  4. Step 4: Simplify right side
    19,812.02x = 165,850,118.76
  5. Step 5: Solve for x
    x = 165,850,118.76/19,812.02
  6. Step 6: Final answer
    x = 8,371.19

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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.