Home / 14,230.80-21,321.90-9,030.60

Finding the Fourth Proportional to 14,230.80, 21,321.90 and 9,030.60

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Solution

The fourth proportional to 14,230.80, 21,321.90 and 9,030.60 is: 13,530.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,230.80 : 21,321.90 = 9,030.60 : x
  2. Step 2: Convert to fraction form
    14,230.80/21,321.90 = 9,030.60/x
  3. Step 3: Cross multiply
    14,230.80x = 21,321.90 × 9,030.60
  4. Step 4: Simplify right side
    14,230.80x = 192,549,550.14
  5. Step 5: Solve for x
    x = 192,549,550.14/14,230.80
  6. Step 6: Final answer
    x = 13,530.48

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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.