Home / 20,303.40-30,457.26-6,449.16

Finding the Fourth Proportional to 20,303.40, 30,457.26 and 6,449.16

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Solution

The fourth proportional to 20,303.40, 30,457.26 and 6,449.16 is: 9,674.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.40 : 30,457.26 = 6,449.16 : x
  2. Step 2: Convert to fraction form
    20,303.40/30,457.26 = 6,449.16/x
  3. Step 3: Cross multiply
    20,303.40x = 30,457.26 × 6,449.16
  4. Step 4: Simplify right side
    20,303.40x = 196,423,742.90
  5. Step 5: Solve for x
    x = 196,423,742.90/20,303.40
  6. Step 6: Final answer
    x = 9,674.43

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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.