Home / 21,406.51-29,539.38-11,973.25

Finding the Fourth Proportional to 21,406.51, 29,539.38 and 11,973.25

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Solution

The fourth proportional to 21,406.51, 29,539.38 and 11,973.25 is: 16,522.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406.51 : 29,539.38 = 11,973.25 : x
  2. Step 2: Convert to fraction form
    21,406.51/29,539.38 = 11,973.25/x
  3. Step 3: Cross multiply
    21,406.51x = 29,539.38 × 11,973.25
  4. Step 4: Simplify right side
    21,406.51x = 353,682,381.59
  5. Step 5: Solve for x
    x = 353,682,381.59/21,406.51
  6. Step 6: Final answer
    x = 16,522.19

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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.