Home / 20,886.48-31,268.16-11,004.48

Finding the Fourth Proportional to 20,886.48, 31,268.16 and 11,004.48

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Solution

The fourth proportional to 20,886.48, 31,268.16 and 11,004.48 is: 16,474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.48 : 31,268.16 = 11,004.48 : x
  2. Step 2: Convert to fraction form
    20,886.48/31,268.16 = 11,004.48/x
  3. Step 3: Cross multiply
    20,886.48x = 31,268.16 × 11,004.48
  4. Step 4: Simplify right side
    20,886.48x = 344,089,841.36
  5. Step 5: Solve for x
    x = 344,089,841.36/20,886.48
  6. Step 6: Final answer
    x = 16,474.29

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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.