Home / 21,324.96-29,428.61-11,765.16

Finding the Fourth Proportional to 21,324.96, 29,428.61 and 11,765.16

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Solution

The fourth proportional to 21,324.96, 29,428.61 and 11,765.16 is: 16,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.96 : 29,428.61 = 11,765.16 : x
  2. Step 2: Convert to fraction form
    21,324.96/29,428.61 = 11,765.16/x
  3. Step 3: Cross multiply
    21,324.96x = 29,428.61 × 11,765.16
  4. Step 4: Simplify right side
    21,324.96x = 346,232,246.40
  5. Step 5: Solve for x
    x = 346,232,246.40/21,324.96
  6. Step 6: Final answer
    x = 16,236.01

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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.