Home / 21,203.19-29,261.21-11,643.87

Finding the Fourth Proportional to 21,203.19, 29,261.21 and 11,643.87

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Solution

The fourth proportional to 21,203.19, 29,261.21 and 11,643.87 is: 16,068.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.19 : 29,261.21 = 11,643.87 : x
  2. Step 2: Convert to fraction form
    21,203.19/29,261.21 = 11,643.87/x
  3. Step 3: Cross multiply
    21,203.19x = 29,261.21 × 11,643.87
  4. Step 4: Simplify right side
    21,203.19x = 340,713,725.28
  5. Step 5: Solve for x
    x = 340,713,725.28/21,203.19
  6. Step 6: Final answer
    x = 16,068.98

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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.