Home / 20,636.72-30,955.08-5,845.77

Finding the Fourth Proportional to 20,636.72, 30,955.08 and 5,845.77

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Solution

The fourth proportional to 20,636.72, 30,955.08 and 5,845.77 is: 8,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,636.72 : 30,955.08 = 5,845.77 : x
  2. Step 2: Convert to fraction form
    20,636.72/30,955.08 = 5,845.77/x
  3. Step 3: Cross multiply
    20,636.72x = 30,955.08 × 5,845.77
  4. Step 4: Simplify right side
    20,636.72x = 180,956,278.01
  5. Step 5: Solve for x
    x = 180,956,278.01/20,636.72
  6. Step 6: Final answer
    x = 8,768.66

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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.