Home / 15,513.36-21,268.86-15,232.56

Finding the Fourth Proportional to 15,513.36, 21,268.86 and 15,232.56

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Solution

The fourth proportional to 15,513.36, 21,268.86 and 15,232.56 is: 20,883.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,513.36 : 21,268.86 = 15,232.56 : x
  2. Step 2: Convert to fraction form
    15,513.36/21,268.86 = 15,232.56/x
  3. Step 3: Cross multiply
    15,513.36x = 21,268.86 × 15,232.56
  4. Step 4: Simplify right side
    15,513.36x = 323,979,186.08
  5. Step 5: Solve for x
    x = 323,979,186.08/15,513.36
  6. Step 6: Final answer
    x = 20,883.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.