Home / 28,795.18-39,739.78-16,222.36

Finding the Fourth Proportional to 28,795.18, 39,739.78 and 16,222.36

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Solution

The fourth proportional to 28,795.18, 39,739.78 and 16,222.36 is: 22,388.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,795.18 : 39,739.78 = 16,222.36 : x
  2. Step 2: Convert to fraction form
    28,795.18/39,739.78 = 16,222.36/x
  3. Step 3: Cross multiply
    28,795.18x = 39,739.78 × 16,222.36
  4. Step 4: Simplify right side
    28,795.18x = 644,673,017.48
  5. Step 5: Solve for x
    x = 644,673,017.48/28,795.18
  6. Step 6: Final answer
    x = 22,388.23

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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.