Home / 13,533.21-20,300.63-3,673.31

Finding the Fourth Proportional to 13,533.21, 20,300.63 and 3,673.31

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Solution

The fourth proportional to 13,533.21, 20,300.63 and 3,673.31 is: 5,510.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.21 : 20,300.63 = 3,673.31 : x
  2. Step 2: Convert to fraction form
    13,533.21/20,300.63 = 3,673.31/x
  3. Step 3: Cross multiply
    13,533.21x = 20,300.63 × 3,673.31
  4. Step 4: Simplify right side
    13,533.21x = 74,570,387.32
  5. Step 5: Solve for x
    x = 74,570,387.32/13,533.21
  6. Step 6: Final answer
    x = 5,510.18

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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.