Home / 28,001.20-41,964.72-20,571.16

Finding the Fourth Proportional to 28,001.20, 41,964.72 and 20,571.16

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Solution

The fourth proportional to 28,001.20, 41,964.72 and 20,571.16 is: 30,829.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.20 : 41,964.72 = 20,571.16 : x
  2. Step 2: Convert to fraction form
    28,001.20/41,964.72 = 20,571.16/x
  3. Step 3: Cross multiply
    28,001.20x = 41,964.72 × 20,571.16
  4. Step 4: Simplify right side
    28,001.20x = 863,262,969.48
  5. Step 5: Solve for x
    x = 863,262,969.48/28,001.20
  6. Step 6: Final answer
    x = 30,829.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.