Home / 28,836.24-39,795.48-21,750.36

Finding the Fourth Proportional to 28,836.24, 39,795.48 and 21,750.36

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Solution

The fourth proportional to 28,836.24, 39,795.48 and 21,750.36 is: 30,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.24 : 39,795.48 = 21,750.36 : x
  2. Step 2: Convert to fraction form
    28,836.24/39,795.48 = 21,750.36/x
  3. Step 3: Cross multiply
    28,836.24x = 39,795.48 × 21,750.36
  4. Step 4: Simplify right side
    28,836.24x = 865,566,016.37
  5. Step 5: Solve for x
    x = 865,566,016.37/28,836.24
  6. Step 6: Final answer
    x = 30,016.60

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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.