Home / 28,765.98-43,136.60-10,040.40

Finding the Fourth Proportional to 28,765.98, 43,136.60 and 10,040.40

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Solution

The fourth proportional to 28,765.98, 43,136.60 and 10,040.40 is: 15,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,765.98 : 43,136.60 = 10,040.40 : x
  2. Step 2: Convert to fraction form
    28,765.98/43,136.60 = 10,040.40/x
  3. Step 3: Cross multiply
    28,765.98x = 43,136.60 × 10,040.40
  4. Step 4: Simplify right side
    28,765.98x = 433,108,668.44
  5. Step 5: Solve for x
    x = 433,108,668.44/28,765.98
  6. Step 6: Final answer
    x = 15,056.28

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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.