Home / 21,485.24-32,220.14-7,441.48

Finding the Fourth Proportional to 21,485.24, 32,220.14 and 7,441.48

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Solution

The fourth proportional to 21,485.24, 32,220.14 and 7,441.48 is: 11,159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.24 : 32,220.14 = 7,441.48 : x
  2. Step 2: Convert to fraction form
    21,485.24/32,220.14 = 7,441.48/x
  3. Step 3: Cross multiply
    21,485.24x = 32,220.14 × 7,441.48
  4. Step 4: Simplify right side
    21,485.24x = 239,765,527.41
  5. Step 5: Solve for x
    x = 239,765,527.41/21,485.24
  6. Step 6: Final answer
    x = 11,159.55

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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.