Home / 30,271.22-45,406.34-13,619.48

Finding the Fourth Proportional to 30,271.22, 45,406.34 and 13,619.48

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Solution

The fourth proportional to 30,271.22, 45,406.34 and 13,619.48 is: 20,428.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,271.22 : 45,406.34 = 13,619.48 : x
  2. Step 2: Convert to fraction form
    30,271.22/45,406.34 = 13,619.48/x
  3. Step 3: Cross multiply
    30,271.22x = 45,406.34 × 13,619.48
  4. Step 4: Simplify right side
    30,271.22x = 618,410,444.37
  5. Step 5: Solve for x
    x = 618,410,444.37/30,271.22
  6. Step 6: Final answer
    x = 20,428.99

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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.