Home / 21,710.90-29,966.93-12,761.27

Finding the Fourth Proportional to 21,710.90, 29,966.93 and 12,761.27

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Solution

The fourth proportional to 21,710.90, 29,966.93 and 12,761.27 is: 17,614.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,710.90 : 29,966.93 = 12,761.27 : x
  2. Step 2: Convert to fraction form
    21,710.90/29,966.93 = 12,761.27/x
  3. Step 3: Cross multiply
    21,710.90x = 29,966.93 × 12,761.27
  4. Step 4: Simplify right side
    21,710.90x = 382,415,871.16
  5. Step 5: Solve for x
    x = 382,415,871.16/21,710.90
  6. Step 6: Final answer
    x = 17,614.01

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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.