Home / 15,765.60-23,649.48-4,080

Finding the Fourth Proportional to 15,765.60, 23,649.48 and 4,080

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Solution

The fourth proportional to 15,765.60, 23,649.48 and 4,080 is: 6,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.60 : 23,649.48 = 4,080 : x
  2. Step 2: Convert to fraction form
    15,765.60/23,649.48 = 4,080/x
  3. Step 3: Cross multiply
    15,765.60x = 23,649.48 × 4,080
  4. Step 4: Simplify right side
    15,765.60x = 96,489,878.40
  5. Step 5: Solve for x
    x = 96,489,878.40/15,765.60
  6. Step 6: Final answer
    x = 6,120.28

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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.