Home / 30,057.28-45,069.26-12,300.41

Finding the Fourth Proportional to 30,057.28, 45,069.26 and 12,300.41

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Solution

The fourth proportional to 30,057.28, 45,069.26 and 12,300.41 is: 18,443.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,057.28 : 45,069.26 = 12,300.41 : x
  2. Step 2: Convert to fraction form
    30,057.28/45,069.26 = 12,300.41/x
  3. Step 3: Cross multiply
    30,057.28x = 45,069.26 × 12,300.41
  4. Step 4: Simplify right side
    30,057.28x = 554,370,243.24
  5. Step 5: Solve for x
    x = 554,370,243.24/30,057.28
  6. Step 6: Final answer
    x = 18,443.79

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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.