Home / 28,488.46-39,321.73-16,390.33

Finding the Fourth Proportional to 28,488.46, 39,321.73 and 16,390.33

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Solution

The fourth proportional to 28,488.46, 39,321.73 and 16,390.33 is: 22,623.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,488.46 : 39,321.73 = 16,390.33 : x
  2. Step 2: Convert to fraction form
    28,488.46/39,321.73 = 16,390.33/x
  3. Step 3: Cross multiply
    28,488.46x = 39,321.73 × 16,390.33
  4. Step 4: Simplify right side
    28,488.46x = 644,496,130.87
  5. Step 5: Solve for x
    x = 644,496,130.87/28,488.46
  6. Step 6: Final answer
    x = 22,623.06

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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.