Home / 20,181.02-27,849.95-11,228.90

Finding the Fourth Proportional to 20,181.02, 27,849.95 and 11,228.90

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Solution

The fourth proportional to 20,181.02, 27,849.95 and 11,228.90 is: 15,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.02 : 27,849.95 = 11,228.90 : x
  2. Step 2: Convert to fraction form
    20,181.02/27,849.95 = 11,228.90/x
  3. Step 3: Cross multiply
    20,181.02x = 27,849.95 × 11,228.90
  4. Step 4: Simplify right side
    20,181.02x = 312,724,401.25
  5. Step 5: Solve for x
    x = 312,724,401.25/20,181.02
  6. Step 6: Final answer
    x = 15,495.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.