Home / 28,556.02-42,844.17-12,759.60

Finding the Fourth Proportional to 28,556.02, 42,844.17 and 12,759.60

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Solution

The fourth proportional to 28,556.02, 42,844.17 and 12,759.60 is: 19,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,556.02 : 42,844.17 = 12,759.60 : x
  2. Step 2: Convert to fraction form
    28,556.02/42,844.17 = 12,759.60/x
  3. Step 3: Cross multiply
    28,556.02x = 42,844.17 × 12,759.60
  4. Step 4: Simplify right side
    28,556.02x = 546,674,680.05
  5. Step 5: Solve for x
    x = 546,674,680.05/28,556.02
  6. Step 6: Final answer
    x = 19,143.94

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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.