Home / 14,080.42-21,120.63-4,219.48

Finding the Fourth Proportional to 14,080.42, 21,120.63 and 4,219.48

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Solution

The fourth proportional to 14,080.42, 21,120.63 and 4,219.48 is: 6,329.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.42 : 21,120.63 = 4,219.48 : x
  2. Step 2: Convert to fraction form
    14,080.42/21,120.63 = 4,219.48/x
  3. Step 3: Cross multiply
    14,080.42x = 21,120.63 × 4,219.48
  4. Step 4: Simplify right side
    14,080.42x = 89,118,075.87
  5. Step 5: Solve for x
    x = 89,118,075.87/14,080.42
  6. Step 6: Final answer
    x = 6,329.22

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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.