Home / 28,860.10-43,294.20-9,136.60

Finding the Fourth Proportional to 28,860.10, 43,294.20 and 9,136.60

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Solution

The fourth proportional to 28,860.10, 43,294.20 and 9,136.60 is: 13,706.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.10 : 43,294.20 = 9,136.60 : x
  2. Step 2: Convert to fraction form
    28,860.10/43,294.20 = 9,136.60/x
  3. Step 3: Cross multiply
    28,860.10x = 43,294.20 × 9,136.60
  4. Step 4: Simplify right side
    28,860.10x = 395,561,787.72
  5. Step 5: Solve for x
    x = 395,561,787.72/28,860.10
  6. Step 6: Final answer
    x = 13,706.18

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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.