Home / 21,440.80-32,144.03-10,190.50

Finding the Fourth Proportional to 21,440.80, 32,144.03 and 10,190.50

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Solution

The fourth proportional to 21,440.80, 32,144.03 and 10,190.50 is: 15,277.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.80 : 32,144.03 = 10,190.50 : x
  2. Step 2: Convert to fraction form
    21,440.80/32,144.03 = 10,190.50/x
  3. Step 3: Cross multiply
    21,440.80x = 32,144.03 × 10,190.50
  4. Step 4: Simplify right side
    21,440.80x = 327,563,644.62
  5. Step 5: Solve for x
    x = 327,563,644.62/21,440.80
  6. Step 6: Final answer
    x = 15,277.58

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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.