Home / 21,393.99-29,523.91-11,833.40

Finding the Fourth Proportional to 21,393.99, 29,523.91 and 11,833.40

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Solution

The fourth proportional to 21,393.99, 29,523.91 and 11,833.40 is: 16,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393.99 : 29,523.91 = 11,833.40 : x
  2. Step 2: Convert to fraction form
    21,393.99/29,523.91 = 11,833.40/x
  3. Step 3: Cross multiply
    21,393.99x = 29,523.91 × 11,833.40
  4. Step 4: Simplify right side
    21,393.99x = 349,368,236.59
  5. Step 5: Solve for x
    x = 349,368,236.59/21,393.99
  6. Step 6: Final answer
    x = 16,330.20

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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.