Home / 21,016.08-31,533.42-11,018.43

Finding the Fourth Proportional to 21,016.08, 31,533.42 and 11,018.43

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Solution

The fourth proportional to 21,016.08, 31,533.42 and 11,018.43 is: 16,532.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.08 : 31,533.42 = 11,018.43 : x
  2. Step 2: Convert to fraction form
    21,016.08/31,533.42 = 11,018.43/x
  3. Step 3: Cross multiply
    21,016.08x = 31,533.42 × 11,018.43
  4. Step 4: Simplify right side
    21,016.08x = 347,448,780.93
  5. Step 5: Solve for x
    x = 347,448,780.93/21,016.08
  6. Step 6: Final answer
    x = 16,532.52

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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.