Home / 20,645.94-30,968.85-5,854.86

Finding the Fourth Proportional to 20,645.94, 30,968.85 and 5,854.86

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Solution

The fourth proportional to 20,645.94, 30,968.85 and 5,854.86 is: 8,782.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.94 : 30,968.85 = 5,854.86 : x
  2. Step 2: Convert to fraction form
    20,645.94/30,968.85 = 5,854.86/x
  3. Step 3: Cross multiply
    20,645.94x = 30,968.85 × 5,854.86
  4. Step 4: Simplify right side
    20,645.94x = 181,318,281.11
  5. Step 5: Solve for x
    x = 181,318,281.11/20,645.94
  6. Step 6: Final answer
    x = 8,782.27

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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.