Home / 21,936.51-30,270.04-12,374.26

Finding the Fourth Proportional to 21,936.51, 30,270.04 and 12,374.26

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Solution

The fourth proportional to 21,936.51, 30,270.04 and 12,374.26 is: 17,075.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936.51 : 30,270.04 = 12,374.26 : x
  2. Step 2: Convert to fraction form
    21,936.51/30,270.04 = 12,374.26/x
  3. Step 3: Cross multiply
    21,936.51x = 30,270.04 × 12,374.26
  4. Step 4: Simplify right side
    21,936.51x = 374,569,238.56
  5. Step 5: Solve for x
    x = 374,569,238.56/21,936.51
  6. Step 6: Final answer
    x = 17,075.15

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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.