Home / 20,230.83-30,349.08-7,080.21

Finding the Fourth Proportional to 20,230.83, 30,349.08 and 7,080.21

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Solution

The fourth proportional to 20,230.83, 30,349.08 and 7,080.21 is: 10,621.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.83 : 30,349.08 = 7,080.21 : x
  2. Step 2: Convert to fraction form
    20,230.83/30,349.08 = 7,080.21/x
  3. Step 3: Cross multiply
    20,230.83x = 30,349.08 × 7,080.21
  4. Step 4: Simplify right side
    20,230.83x = 214,877,859.71
  5. Step 5: Solve for x
    x = 214,877,859.71/20,230.83
  6. Step 6: Final answer
    x = 10,621.31

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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.