Home / 28,205.22-42,309.92-9,485.19

Finding the Fourth Proportional to 28,205.22, 42,309.92 and 9,485.19

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Solution

The fourth proportional to 28,205.22, 42,309.92 and 9,485.19 is: 14,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,205.22 : 42,309.92 = 9,485.19 : x
  2. Step 2: Convert to fraction form
    28,205.22/42,309.92 = 9,485.19/x
  3. Step 3: Cross multiply
    28,205.22x = 42,309.92 × 9,485.19
  4. Step 4: Simplify right side
    28,205.22x = 401,317,582.66
  5. Step 5: Solve for x
    x = 401,317,582.66/28,205.22
  6. Step 6: Final answer
    x = 14,228.49

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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.