Home / 30,799.80-42,469.56-22,285.08

Finding the Fourth Proportional to 30,799.80, 42,469.56 and 22,285.08

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Solution

The fourth proportional to 30,799.80, 42,469.56 and 22,285.08 is: 30,728.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,799.80 : 42,469.56 = 22,285.08 : x
  2. Step 2: Convert to fraction form
    30,799.80/42,469.56 = 22,285.08/x
  3. Step 3: Cross multiply
    30,799.80x = 42,469.56 × 22,285.08
  4. Step 4: Simplify right side
    30,799.80x = 946,437,542.16
  5. Step 5: Solve for x
    x = 946,437,542.16/30,799.80
  6. Step 6: Final answer
    x = 30,728.69

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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.