Home / 20,741.00-28,621.01-12,783.35

Finding the Fourth Proportional to 20,741.00, 28,621.01 and 12,783.35

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Solution

The fourth proportional to 20,741.00, 28,621.01 and 12,783.35 is: 17,640.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.00 : 28,621.01 = 12,783.35 : x
  2. Step 2: Convert to fraction form
    20,741.00/28,621.01 = 12,783.35/x
  3. Step 3: Cross multiply
    20,741.00x = 28,621.01 × 12,783.35
  4. Step 4: Simplify right side
    20,741.00x = 365,872,491.69
  5. Step 5: Solve for x
    x = 365,872,491.69/20,741.00
  6. Step 6: Final answer
    x = 17,640.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.