Home / 30,351.03-45,532.67-12,820.83

Finding the Fourth Proportional to 30,351.03, 45,532.67 and 12,820.83

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Solution

The fourth proportional to 30,351.03, 45,532.67 and 12,820.83 is: 19,233.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,351.03 : 45,532.67 = 12,820.83 : x
  2. Step 2: Convert to fraction form
    30,351.03/45,532.67 = 12,820.83/x
  3. Step 3: Cross multiply
    30,351.03x = 45,532.67 × 12,820.83
  4. Step 4: Simplify right side
    30,351.03x = 583,766,557.41
  5. Step 5: Solve for x
    x = 583,766,557.41/30,351.03
  6. Step 6: Final answer
    x = 19,233.83

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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.