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Finding the Fourth Proportional to 13,477.31, 20,184.81 and 13,010.23

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Solution

The fourth proportional to 13,477.31, 20,184.81 and 13,010.23 is: 19,485.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.31 : 20,184.81 = 13,010.23 : x
  2. Step 2: Convert to fraction form
    13,477.31/20,184.81 = 13,010.23/x
  3. Step 3: Cross multiply
    13,477.31x = 20,184.81 × 13,010.23
  4. Step 4: Simplify right side
    13,477.31x = 262,608,990.34
  5. Step 5: Solve for x
    x = 262,608,990.34/13,477.31
  6. Step 6: Final answer
    x = 19,485.26

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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.