Home / 30,756.54-42,622.23-30,165.96

Finding the Fourth Proportional to 30,756.54, 42,622.23 and 30,165.96

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Solution

The fourth proportional to 30,756.54, 42,622.23 and 30,165.96 is: 41,803.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,756.54 : 42,622.23 = 30,165.96 : x
  2. Step 2: Convert to fraction form
    30,756.54/42,622.23 = 30,165.96/x
  3. Step 3: Cross multiply
    30,756.54x = 42,622.23 × 30,165.96
  4. Step 4: Simplify right side
    30,756.54x = 1,285,740,485.29
  5. Step 5: Solve for x
    x = 1,285,740,485.29/30,756.54
  6. Step 6: Final answer
    x = 41,803.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.