Home / 28,203.99-42,289.37-9,479.22

Finding the Fourth Proportional to 28,203.99, 42,289.37 and 9,479.22

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Solution

The fourth proportional to 28,203.99, 42,289.37 and 9,479.22 is: 14,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.99 : 42,289.37 = 9,479.22 : x
  2. Step 2: Convert to fraction form
    28,203.99/42,289.37 = 9,479.22/x
  3. Step 3: Cross multiply
    28,203.99x = 42,289.37 × 9,479.22
  4. Step 4: Simplify right side
    28,203.99x = 400,870,241.89
  5. Step 5: Solve for x
    x = 400,870,241.89/28,203.99
  6. Step 6: Final answer
    x = 14,213.25

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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.