Home / 28,734.66-39,649-15,986.18

Finding the Fourth Proportional to 28,734.66, 39,649 and 15,986.18

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Solution

The fourth proportional to 28,734.66, 39,649 and 15,986.18 is: 22,058.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,734.66 : 39,649 = 15,986.18 : x
  2. Step 2: Convert to fraction form
    28,734.66/39,649 = 15,986.18/x
  3. Step 3: Cross multiply
    28,734.66x = 39,649 × 15,986.18
  4. Step 4: Simplify right side
    28,734.66x = 633,836,050.82
  5. Step 5: Solve for x
    x = 633,836,050.82/28,734.66
  6. Step 6: Final answer
    x = 22,058.24

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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.