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Finding the Fourth Proportional to 18,803.19, 28,216.50 and 17,051.36

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Solution

The fourth proportional to 18,803.19, 28,216.50 and 17,051.36 is: 25,587.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.19 : 28,216.50 = 17,051.36 : x
  2. Step 2: Convert to fraction form
    18,803.19/28,216.50 = 17,051.36/x
  3. Step 3: Cross multiply
    18,803.19x = 28,216.50 × 17,051.36
  4. Step 4: Simplify right side
    18,803.19x = 481,129,749.05
  5. Step 5: Solve for x
    x = 481,129,749.05/18,803.19
  6. Step 6: Final answer
    x = 25,587.67

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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.