Home / 28,915.10-43,373.85-9,193.10

Finding the Fourth Proportional to 28,915.10, 43,373.85 and 9,193.10

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Solution

The fourth proportional to 28,915.10, 43,373.85 and 9,193.10 is: 13,790.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.10 : 43,373.85 = 9,193.10 : x
  2. Step 2: Convert to fraction form
    28,915.10/43,373.85 = 9,193.10/x
  3. Step 3: Cross multiply
    28,915.10x = 43,373.85 × 9,193.10
  4. Step 4: Simplify right side
    28,915.10x = 398,740,140.44
  5. Step 5: Solve for x
    x = 398,740,140.44/28,915.10
  6. Step 6: Final answer
    x = 13,790.03

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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.