Home / 28,626.98-39,505.50-15,880.41

Finding the Fourth Proportional to 28,626.98, 39,505.50 and 15,880.41

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Solution

The fourth proportional to 28,626.98, 39,505.50 and 15,880.41 is: 21,915.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,626.98 : 39,505.50 = 15,880.41 : x
  2. Step 2: Convert to fraction form
    28,626.98/39,505.50 = 15,880.41/x
  3. Step 3: Cross multiply
    28,626.98x = 39,505.50 × 15,880.41
  4. Step 4: Simplify right side
    28,626.98x = 627,363,537.26
  5. Step 5: Solve for x
    x = 627,363,537.26/28,626.98
  6. Step 6: Final answer
    x = 21,915.12

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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.