Home / 38,915.80-58,352.10-15,515.80

Finding the Fourth Proportional to 38,915.80, 58,352.10 and 15,515.80

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Solution

The fourth proportional to 38,915.80, 58,352.10 and 15,515.80 is: 23,265.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,915.80 : 58,352.10 = 15,515.80 : x
  2. Step 2: Convert to fraction form
    38,915.80/58,352.10 = 15,515.80/x
  3. Step 3: Cross multiply
    38,915.80x = 58,352.10 × 15,515.80
  4. Step 4: Simplify right side
    38,915.80x = 905,379,513.18
  5. Step 5: Solve for x
    x = 905,379,513.18/38,915.80
  6. Step 6: Final answer
    x = 23,265.09

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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.