Home / 21,086.48-29,099.37-11,526.45

Finding the Fourth Proportional to 21,086.48, 29,099.37 and 11,526.45

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Solution

The fourth proportional to 21,086.48, 29,099.37 and 11,526.45 is: 15,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,086.48 : 29,099.37 = 11,526.45 : x
  2. Step 2: Convert to fraction form
    21,086.48/29,099.37 = 11,526.45/x
  3. Step 3: Cross multiply
    21,086.48x = 29,099.37 × 11,526.45
  4. Step 4: Simplify right side
    21,086.48x = 335,412,433.34
  5. Step 5: Solve for x
    x = 335,412,433.34/21,086.48
  6. Step 6: Final answer
    x = 15,906.52

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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.