Home / 21,396.99-29,526.64-11,836.32

Finding the Fourth Proportional to 21,396.99, 29,526.64 and 11,836.32

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Solution

The fourth proportional to 21,396.99, 29,526.64 and 11,836.32 is: 16,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.99 : 29,526.64 = 11,836.32 : x
  2. Step 2: Convert to fraction form
    21,396.99/29,526.64 = 11,836.32/x
  3. Step 3: Cross multiply
    21,396.99x = 29,526.64 × 11,836.32
  4. Step 4: Simplify right side
    21,396.99x = 349,486,759.56
  5. Step 5: Solve for x
    x = 349,486,759.56/21,396.99
  6. Step 6: Final answer
    x = 16,333.45

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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.