Home / 21,019.24-31,538.14-11,021.60

Finding the Fourth Proportional to 21,019.24, 31,538.14 and 11,021.60

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Solution

The fourth proportional to 21,019.24, 31,538.14 and 11,021.60 is: 16,537.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019.24 : 31,538.14 = 11,021.60 : x
  2. Step 2: Convert to fraction form
    21,019.24/31,538.14 = 11,021.60/x
  3. Step 3: Cross multiply
    21,019.24x = 31,538.14 × 11,021.60
  4. Step 4: Simplify right side
    21,019.24x = 347,600,606.13
  5. Step 5: Solve for x
    x = 347,600,606.13/21,019.24
  6. Step 6: Final answer
    x = 16,537.26

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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.