Home / 28,860.80-43,280.40-10,133.60

Finding the Fourth Proportional to 28,860.80, 43,280.40 and 10,133.60

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Solution

The fourth proportional to 28,860.80, 43,280.40 and 10,133.60 is: 15,196.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.80 : 43,280.40 = 10,133.60 : x
  2. Step 2: Convert to fraction form
    28,860.80/43,280.40 = 10,133.60/x
  3. Step 3: Cross multiply
    28,860.80x = 43,280.40 × 10,133.60
  4. Step 4: Simplify right side
    28,860.80x = 438,586,261.44
  5. Step 5: Solve for x
    x = 438,586,261.44/28,860.80
  6. Step 6: Final answer
    x = 15,196.61

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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.