Home / 28,980.12-39,998.82-17,653.35

Finding the Fourth Proportional to 28,980.12, 39,998.82 and 17,653.35

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Solution

The fourth proportional to 28,980.12, 39,998.82 and 17,653.35 is: 24,365.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,980.12 : 39,998.82 = 17,653.35 : x
  2. Step 2: Convert to fraction form
    28,980.12/39,998.82 = 17,653.35/x
  3. Step 3: Cross multiply
    28,980.12x = 39,998.82 × 17,653.35
  4. Step 4: Simplify right side
    28,980.12x = 706,113,169.05
  5. Step 5: Solve for x
    x = 706,113,169.05/28,980.12
  6. Step 6: Final answer
    x = 24,365.43

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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.