Home / 34,078.08-47,028.24-18,969.60

Finding the Fourth Proportional to 34,078.08, 47,028.24 and 18,969.60

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Solution

The fourth proportional to 34,078.08, 47,028.24 and 18,969.60 is: 26,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,078.08 : 47,028.24 = 18,969.60 : x
  2. Step 2: Convert to fraction form
    34,078.08/47,028.24 = 18,969.60/x
  3. Step 3: Cross multiply
    34,078.08x = 47,028.24 × 18,969.60
  4. Step 4: Simplify right side
    34,078.08x = 892,106,901.50
  5. Step 5: Solve for x
    x = 892,106,901.50/34,078.08
  6. Step 6: Final answer
    x = 26,178.32

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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.