Home / 28,775.60-39,712.16-16,201.16

Finding the Fourth Proportional to 28,775.60, 39,712.16 and 16,201.16

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Solution

The fourth proportional to 28,775.60, 39,712.16 and 16,201.16 is: 22,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775.60 : 39,712.16 = 16,201.16 : x
  2. Step 2: Convert to fraction form
    28,775.60/39,712.16 = 16,201.16/x
  3. Step 3: Cross multiply
    28,775.60x = 39,712.16 × 16,201.16
  4. Step 4: Simplify right side
    28,775.60x = 643,383,181.22
  5. Step 5: Solve for x
    x = 643,383,181.22/28,775.60
  6. Step 6: Final answer
    x = 22,358.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.