Home / 28,930.37-39,923.89-16,355.12

Finding the Fourth Proportional to 28,930.37, 39,923.89 and 16,355.12

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Solution

The fourth proportional to 28,930.37, 39,923.89 and 16,355.12 is: 22,570.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.37 : 39,923.89 = 16,355.12 : x
  2. Step 2: Convert to fraction form
    28,930.37/39,923.89 = 16,355.12/x
  3. Step 3: Cross multiply
    28,930.37x = 39,923.89 × 16,355.12
  4. Step 4: Simplify right side
    28,930.37x = 652,959,771.31
  5. Step 5: Solve for x
    x = 652,959,771.31/28,930.37
  6. Step 6: Final answer
    x = 22,570.05

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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.