Home / 28,698.88-39,602.64-16,765.60

Finding the Fourth Proportional to 28,698.88, 39,602.64 and 16,765.60

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Solution

The fourth proportional to 28,698.88, 39,602.64 and 16,765.60 is: 23,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,698.88 : 39,602.64 = 16,765.60 : x
  2. Step 2: Convert to fraction form
    28,698.88/39,602.64 = 16,765.60/x
  3. Step 3: Cross multiply
    28,698.88x = 39,602.64 × 16,765.60
  4. Step 4: Simplify right side
    28,698.88x = 663,962,021.18
  5. Step 5: Solve for x
    x = 663,962,021.18/28,698.88
  6. Step 6: Final answer
    x = 23,135.47

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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.