Home / 39,915.90-59,818.24-20,171.42

Finding the Fourth Proportional to 39,915.90, 59,818.24 and 20,171.42

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Solution

The fourth proportional to 39,915.90, 59,818.24 and 20,171.42 is: 30,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915.90 : 59,818.24 = 20,171.42 : x
  2. Step 2: Convert to fraction form
    39,915.90/59,818.24 = 20,171.42/x
  3. Step 3: Cross multiply
    39,915.90x = 59,818.24 × 20,171.42
  4. Step 4: Simplify right side
    39,915.90x = 1,206,618,842.70
  5. Step 5: Solve for x
    x = 1,206,618,842.70/39,915.90
  6. Step 6: Final answer
    x = 30,229.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.