Home / 21,412.31-29,561.96-13,973.27

Finding the Fourth Proportional to 21,412.31, 29,561.96 and 13,973.27

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Solution

The fourth proportional to 21,412.31, 29,561.96 and 13,973.27 is: 19,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,412.31 : 29,561.96 = 13,973.27 : x
  2. Step 2: Convert to fraction form
    21,412.31/29,561.96 = 13,973.27/x
  3. Step 3: Cross multiply
    21,412.31x = 29,561.96 × 13,973.27
  4. Step 4: Simplify right side
    21,412.31x = 413,077,252.85
  5. Step 5: Solve for x
    x = 413,077,252.85/21,412.31
  6. Step 6: Final answer
    x = 19,291.58

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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.