Home / 21,185.28-29,236.55-11,626.00

Finding the Fourth Proportional to 21,185.28, 29,236.55 and 11,626.00

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Solution

The fourth proportional to 21,185.28, 29,236.55 and 11,626.00 is: 16,044.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.28 : 29,236.55 = 11,626.00 : x
  2. Step 2: Convert to fraction form
    21,185.28/29,236.55 = 11,626.00/x
  3. Step 3: Cross multiply
    21,185.28x = 29,236.55 × 11,626.00
  4. Step 4: Simplify right side
    21,185.28x = 339,903,999.08
  5. Step 5: Solve for x
    x = 339,903,999.08/21,185.28
  6. Step 6: Final answer
    x = 16,044.35

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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.