Home / 20,847.93-31,277.75-8,376.71

Finding the Fourth Proportional to 20,847.93, 31,277.75 and 8,376.71

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Solution

The fourth proportional to 20,847.93, 31,277.75 and 8,376.71 is: 12,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847.93 : 31,277.75 = 8,376.71 : x
  2. Step 2: Convert to fraction form
    20,847.93/31,277.75 = 8,376.71/x
  3. Step 3: Cross multiply
    20,847.93x = 31,277.75 × 8,376.71
  4. Step 4: Simplify right side
    20,847.93x = 262,004,677.51
  5. Step 5: Solve for x
    x = 262,004,677.51/20,847.93
  6. Step 6: Final answer
    x = 12,567.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.