Home / 28,699.88-39,608.48-16,767.08

Finding the Fourth Proportional to 28,699.88, 39,608.48 and 16,767.08

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Solution

The fourth proportional to 28,699.88, 39,608.48 and 16,767.08 is: 23,140.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.88 : 39,608.48 = 16,767.08 : x
  2. Step 2: Convert to fraction form
    28,699.88/39,608.48 = 16,767.08/x
  3. Step 3: Cross multiply
    28,699.88x = 39,608.48 × 16,767.08
  4. Step 4: Simplify right side
    28,699.88x = 664,118,552.84
  5. Step 5: Solve for x
    x = 664,118,552.84/28,699.88
  6. Step 6: Final answer
    x = 23,140.12

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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.