Home / 39,823.51-54,954.35-21,915.05

Finding the Fourth Proportional to 39,823.51, 54,954.35 and 21,915.05

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Solution

The fourth proportional to 39,823.51, 54,954.35 and 21,915.05 is: 30,241.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,823.51 : 54,954.35 = 21,915.05 : x
  2. Step 2: Convert to fraction form
    39,823.51/54,954.35 = 21,915.05/x
  3. Step 3: Cross multiply
    39,823.51x = 54,954.35 × 21,915.05
  4. Step 4: Simplify right side
    39,823.51x = 1,204,327,218.39
  5. Step 5: Solve for x
    x = 1,204,327,218.39/39,823.51
  6. Step 6: Final answer
    x = 30,241.61

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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.