Home / 21,534.31-29,715.86-11,973.44

Finding the Fourth Proportional to 21,534.31, 29,715.86 and 11,973.44

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Solution

The fourth proportional to 21,534.31, 29,715.86 and 11,973.44 is: 16,522.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,534.31 : 29,715.86 = 11,973.44 : x
  2. Step 2: Convert to fraction form
    21,534.31/29,715.86 = 11,973.44/x
  3. Step 3: Cross multiply
    21,534.31x = 29,715.86 × 11,973.44
  4. Step 4: Simplify right side
    21,534.31x = 355,801,003.83
  5. Step 5: Solve for x
    x = 355,801,003.83/21,534.31
  6. Step 6: Final answer
    x = 16,522.52

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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.