Home / 28,501.44-39,293.64-19,992.12

Finding the Fourth Proportional to 28,501.44, 39,293.64 and 19,992.12

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Solution

The fourth proportional to 28,501.44, 39,293.64 and 19,992.12 is: 27,562.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.44 : 39,293.64 = 19,992.12 : x
  2. Step 2: Convert to fraction form
    28,501.44/39,293.64 = 19,992.12/x
  3. Step 3: Cross multiply
    28,501.44x = 39,293.64 × 19,992.12
  4. Step 4: Simplify right side
    28,501.44x = 785,563,166.12
  5. Step 5: Solve for x
    x = 785,563,166.12/28,501.44
  6. Step 6: Final answer
    x = 27,562.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.