Home / 43,319.41-64,987.22-13,729.30

Finding the Fourth Proportional to 43,319.41, 64,987.22 and 13,729.30

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Solution

The fourth proportional to 43,319.41, 64,987.22 and 13,729.30 is: 20,596.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,319.41 : 64,987.22 = 13,729.30 : x
  2. Step 2: Convert to fraction form
    43,319.41/64,987.22 = 13,729.30/x
  3. Step 3: Cross multiply
    43,319.41x = 64,987.22 × 13,729.30
  4. Step 4: Simplify right side
    43,319.41x = 892,229,039.55
  5. Step 5: Solve for x
    x = 892,229,039.55/43,319.41
  6. Step 6: Final answer
    x = 20,596.52

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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.