Home / 39,915.12-55,083.24-22,010.77

Finding the Fourth Proportional to 39,915.12, 55,083.24 and 22,010.77

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Solution

The fourth proportional to 39,915.12, 55,083.24 and 22,010.77 is: 30,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915.12 : 55,083.24 = 22,010.77 : x
  2. Step 2: Convert to fraction form
    39,915.12/55,083.24 = 22,010.77/x
  3. Step 3: Cross multiply
    39,915.12x = 55,083.24 × 22,010.77
  4. Step 4: Simplify right side
    39,915.12x = 1,212,424,526.49
  5. Step 5: Solve for x
    x = 1,212,424,526.49/39,915.12
  6. Step 6: Final answer
    x = 30,375.07

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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.