Home / 30,378.28-45,540.30-16,345.84

Finding the Fourth Proportional to 30,378.28, 45,540.30 and 16,345.84

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Solution

The fourth proportional to 30,378.28, 45,540.30 and 16,345.84 is: 24,504.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378.28 : 45,540.30 = 16,345.84 : x
  2. Step 2: Convert to fraction form
    30,378.28/45,540.30 = 16,345.84/x
  3. Step 3: Cross multiply
    30,378.28x = 45,540.30 × 16,345.84
  4. Step 4: Simplify right side
    30,378.28x = 744,394,457.35
  5. Step 5: Solve for x
    x = 744,394,457.35/30,378.28
  6. Step 6: Final answer
    x = 24,504.17

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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.