Home / 21,241.84-29,315.28-12,744.33

Finding the Fourth Proportional to 21,241.84, 29,315.28 and 12,744.33

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Solution

The fourth proportional to 21,241.84, 29,315.28 and 12,744.33 is: 17,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.84 : 29,315.28 = 12,744.33 : x
  2. Step 2: Convert to fraction form
    21,241.84/29,315.28 = 12,744.33/x
  3. Step 3: Cross multiply
    21,241.84x = 29,315.28 × 12,744.33
  4. Step 4: Simplify right side
    21,241.84x = 373,603,602.36
  5. Step 5: Solve for x
    x = 373,603,602.36/21,241.84
  6. Step 6: Final answer
    x = 17,588.10

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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.