Home / 28,725.48-43,090.50-7,665.60

Finding the Fourth Proportional to 28,725.48, 43,090.50 and 7,665.60

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Solution

The fourth proportional to 28,725.48, 43,090.50 and 7,665.60 is: 11,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.48 : 43,090.50 = 7,665.60 : x
  2. Step 2: Convert to fraction form
    28,725.48/43,090.50 = 7,665.60/x
  3. Step 3: Cross multiply
    28,725.48x = 43,090.50 × 7,665.60
  4. Step 4: Simplify right side
    28,725.48x = 330,314,536.80
  5. Step 5: Solve for x
    x = 330,314,536.80/28,725.48
  6. Step 6: Final answer
    x = 11,499.01

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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.