Home / 28,205.96-42,309.68-9,486.32

Finding the Fourth Proportional to 28,205.96, 42,309.68 and 9,486.32

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Solution

The fourth proportional to 28,205.96, 42,309.68 and 9,486.32 is: 14,229.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,205.96 : 42,309.68 = 9,486.32 : x
  2. Step 2: Convert to fraction form
    28,205.96/42,309.68 = 9,486.32/x
  3. Step 3: Cross multiply
    28,205.96x = 42,309.68 × 9,486.32
  4. Step 4: Simplify right side
    28,205.96x = 401,362,904.60
  5. Step 5: Solve for x
    x = 401,362,904.60/28,205.96
  6. Step 6: Final answer
    x = 14,229.72

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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.