Home / 28,684.82-39,585.56-15,939.18

Finding the Fourth Proportional to 28,684.82, 39,585.56 and 15,939.18

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Solution

The fourth proportional to 28,684.82, 39,585.56 and 15,939.18 is: 21,996.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,684.82 : 39,585.56 = 15,939.18 : x
  2. Step 2: Convert to fraction form
    28,684.82/39,585.56 = 15,939.18/x
  3. Step 3: Cross multiply
    28,684.82x = 39,585.56 × 15,939.18
  4. Step 4: Simplify right side
    28,684.82x = 630,961,366.24
  5. Step 5: Solve for x
    x = 630,961,366.24/28,684.82
  6. Step 6: Final answer
    x = 21,996.35

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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.