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Finding the Fourth Proportional to 18,754.56, 28,107.23 and 13,801.01

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Solution

The fourth proportional to 18,754.56, 28,107.23 and 13,801.01 is: 20,683.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.56 : 28,107.23 = 13,801.01 : x
  2. Step 2: Convert to fraction form
    18,754.56/28,107.23 = 13,801.01/x
  3. Step 3: Cross multiply
    18,754.56x = 28,107.23 × 13,801.01
  4. Step 4: Simplify right side
    18,754.56x = 387,908,162.30
  5. Step 5: Solve for x
    x = 387,908,162.30/18,754.56
  6. Step 6: Final answer
    x = 20,683.41

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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.