Home / 20,130.30-30,200.22-19,795.59

Finding the Fourth Proportional to 20,130.30, 30,200.22 and 19,795.59

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Solution

The fourth proportional to 20,130.30, 30,200.22 and 19,795.59 is: 29,698.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.30 : 30,200.22 = 19,795.59 : x
  2. Step 2: Convert to fraction form
    20,130.30/30,200.22 = 19,795.59/x
  3. Step 3: Cross multiply
    20,130.30x = 30,200.22 × 19,795.59
  4. Step 4: Simplify right side
    20,130.30x = 597,831,173.03
  5. Step 5: Solve for x
    x = 597,831,173.03/20,130.30
  6. Step 6: Final answer
    x = 29,698.08

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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.