Home / 21,181.54-29,228.61-11,750.08

Finding the Fourth Proportional to 21,181.54, 29,228.61 and 11,750.08

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Solution

The fourth proportional to 21,181.54, 29,228.61 and 11,750.08 is: 16,214.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,181.54 : 29,228.61 = 11,750.08 : x
  2. Step 2: Convert to fraction form
    21,181.54/29,228.61 = 11,750.08/x
  3. Step 3: Cross multiply
    21,181.54x = 29,228.61 × 11,750.08
  4. Step 4: Simplify right side
    21,181.54x = 343,438,505.79
  5. Step 5: Solve for x
    x = 343,438,505.79/21,181.54
  6. Step 6: Final answer
    x = 16,214.05

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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.