Home / 30,380.22-45,539.06-11,655.27

Finding the Fourth Proportional to 30,380.22, 45,539.06 and 11,655.27

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Solution

The fourth proportional to 30,380.22, 45,539.06 and 11,655.27 is: 17,470.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,380.22 : 45,539.06 = 11,655.27 : x
  2. Step 2: Convert to fraction form
    30,380.22/45,539.06 = 11,655.27/x
  3. Step 3: Cross multiply
    30,380.22x = 45,539.06 × 11,655.27
  4. Step 4: Simplify right side
    30,380.22x = 530,769,981.57
  5. Step 5: Solve for x
    x = 530,769,981.57/30,380.22
  6. Step 6: Final answer
    x = 17,470.91

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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.