Home / 20,449.40-30,674.12-6,410.53

Finding the Fourth Proportional to 20,449.40, 30,674.12 and 6,410.53

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Solution

The fourth proportional to 20,449.40, 30,674.12 and 6,410.53 is: 9,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.40 : 30,674.12 = 6,410.53 : x
  2. Step 2: Convert to fraction form
    20,449.40/30,674.12 = 6,410.53/x
  3. Step 3: Cross multiply
    20,449.40x = 30,674.12 × 6,410.53
  4. Step 4: Simplify right side
    20,449.40x = 196,637,305.82
  5. Step 5: Solve for x
    x = 196,637,305.82/20,449.40
  6. Step 6: Final answer
    x = 9,615.80

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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.