Home / 30,393.01-41,961.61-20,848.88

Finding the Fourth Proportional to 30,393.01, 41,961.61 and 20,848.88

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Solution

The fourth proportional to 30,393.01, 41,961.61 and 20,848.88 is: 28,784.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,393.01 : 41,961.61 = 20,848.88 : x
  2. Step 2: Convert to fraction form
    30,393.01/41,961.61 = 20,848.88/x
  3. Step 3: Cross multiply
    30,393.01x = 41,961.61 × 20,848.88
  4. Step 4: Simplify right side
    30,393.01x = 874,852,571.50
  5. Step 5: Solve for x
    x = 874,852,571.50/30,393.01
  6. Step 6: Final answer
    x = 28,784.67

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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.