Home / 35,771.60-49,367.05-20,664.90

Finding the Fourth Proportional to 35,771.60, 49,367.05 and 20,664.90

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Solution

The fourth proportional to 35,771.60, 49,367.05 and 20,664.90 is: 28,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,771.60 : 49,367.05 = 20,664.90 : x
  2. Step 2: Convert to fraction form
    35,771.60/49,367.05 = 20,664.90/x
  3. Step 3: Cross multiply
    35,771.60x = 49,367.05 × 20,664.90
  4. Step 4: Simplify right side
    35,771.60x = 1,020,165,099.88
  5. Step 5: Solve for x
    x = 1,020,165,099.88/35,771.60
  6. Step 6: Final answer
    x = 28,518.85

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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.