Home / 13,646.48-20,470.25-13,453.16

Finding the Fourth Proportional to 13,646.48, 20,470.25 and 13,453.16

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Solution

The fourth proportional to 13,646.48, 20,470.25 and 13,453.16 is: 20,180.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.48 : 20,470.25 = 13,453.16 : x
  2. Step 2: Convert to fraction form
    13,646.48/20,470.25 = 13,453.16/x
  3. Step 3: Cross multiply
    13,646.48x = 20,470.25 × 13,453.16
  4. Step 4: Simplify right side
    13,646.48x = 275,389,479.77
  5. Step 5: Solve for x
    x = 275,389,479.77/13,646.48
  6. Step 6: Final answer
    x = 20,180.26

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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.