Home / 30,259.18-41,728.35-20,188.03

Finding the Fourth Proportional to 30,259.18, 41,728.35 and 20,188.03

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Solution

The fourth proportional to 30,259.18, 41,728.35 and 20,188.03 is: 27,839.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,259.18 : 41,728.35 = 20,188.03 : x
  2. Step 2: Convert to fraction form
    30,259.18/41,728.35 = 20,188.03/x
  3. Step 3: Cross multiply
    30,259.18x = 41,728.35 × 20,188.03
  4. Step 4: Simplify right side
    30,259.18x = 842,413,181.65
  5. Step 5: Solve for x
    x = 842,413,181.65/30,259.18
  6. Step 6: Final answer
    x = 27,839.92

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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.