Home / 28,683.46-39,582.66-15,936.70

Finding the Fourth Proportional to 28,683.46, 39,582.66 and 15,936.70

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Solution

The fourth proportional to 28,683.46, 39,582.66 and 15,936.70 is: 21,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,683.46 : 39,582.66 = 15,936.70 : x
  2. Step 2: Convert to fraction form
    28,683.46/39,582.66 = 15,936.70/x
  3. Step 3: Cross multiply
    28,683.46x = 39,582.66 × 15,936.70
  4. Step 4: Simplify right side
    28,683.46x = 630,816,977.62
  5. Step 5: Solve for x
    x = 630,816,977.62/28,683.46
  6. Step 6: Final answer
    x = 21,992.36

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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.