Home / 43,987.24-65,975.66-12,399.67

Finding the Fourth Proportional to 43,987.24, 65,975.66 and 12,399.67

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Solution

The fourth proportional to 43,987.24, 65,975.66 and 12,399.67 is: 18,598.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,987.24 : 65,975.66 = 12,399.67 : x
  2. Step 2: Convert to fraction form
    43,987.24/65,975.66 = 12,399.67/x
  3. Step 3: Cross multiply
    43,987.24x = 65,975.66 × 12,399.67
  4. Step 4: Simplify right side
    43,987.24x = 818,076,412.03
  5. Step 5: Solve for x
    x = 818,076,412.03/43,987.24
  6. Step 6: Final answer
    x = 18,598.04

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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.