Home / 39,915.50-55,083.75-22,011.15

Finding the Fourth Proportional to 39,915.50, 55,083.75 and 22,011.15

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Solution

The fourth proportional to 39,915.50, 55,083.75 and 22,011.15 is: 30,375.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915.50 : 55,083.75 = 22,011.15 : x
  2. Step 2: Convert to fraction form
    39,915.50/55,083.75 = 22,011.15/x
  3. Step 3: Cross multiply
    39,915.50x = 55,083.75 × 22,011.15
  4. Step 4: Simplify right side
    39,915.50x = 1,212,456,683.81
  5. Step 5: Solve for x
    x = 1,212,456,683.81/39,915.50
  6. Step 6: Final answer
    x = 30,375.59

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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.