Home / 28,684.12-39,589.78-18,329.25

Finding the Fourth Proportional to 28,684.12, 39,589.78 and 18,329.25

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Solution

The fourth proportional to 28,684.12, 39,589.78 and 18,329.25 is: 25,298.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,684.12 : 39,589.78 = 18,329.25 : x
  2. Step 2: Convert to fraction form
    28,684.12/39,589.78 = 18,329.25/x
  3. Step 3: Cross multiply
    28,684.12x = 39,589.78 × 18,329.25
  4. Step 4: Simplify right side
    28,684.12x = 725,650,889.38
  5. Step 5: Solve for x
    x = 725,650,889.38/28,684.12
  6. Step 6: Final answer
    x = 25,298.00

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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.