Home / 21,404.30-29,538.81-11,844.02

Finding the Fourth Proportional to 21,404.30, 29,538.81 and 11,844.02

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Solution

The fourth proportional to 21,404.30, 29,538.81 and 11,844.02 is: 16,345.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.30 : 29,538.81 = 11,844.02 : x
  2. Step 2: Convert to fraction form
    21,404.30/29,538.81 = 11,844.02/x
  3. Step 3: Cross multiply
    21,404.30x = 29,538.81 × 11,844.02
  4. Step 4: Simplify right side
    21,404.30x = 349,858,256.42
  5. Step 5: Solve for x
    x = 349,858,256.42/21,404.30
  6. Step 6: Final answer
    x = 16,345.23

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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.