Home / 21,021.04-29,008.48-11,589.36

Finding the Fourth Proportional to 21,021.04, 29,008.48 and 11,589.36

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Solution

The fourth proportional to 21,021.04, 29,008.48 and 11,589.36 is: 15,993.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021.04 : 29,008.48 = 11,589.36 : x
  2. Step 2: Convert to fraction form
    21,021.04/29,008.48 = 11,589.36/x
  3. Step 3: Cross multiply
    21,021.04x = 29,008.48 × 11,589.36
  4. Step 4: Simplify right side
    21,021.04x = 336,189,717.77
  5. Step 5: Solve for x
    x = 336,189,717.77/21,021.04
  6. Step 6: Final answer
    x = 15,993.01

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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.