Home / 30,498.22-45,817.42-21,635.55

Finding the Fourth Proportional to 30,498.22, 45,817.42 and 21,635.55

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Solution

The fourth proportional to 30,498.22, 45,817.42 and 21,635.55 is: 32,503.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,498.22 : 45,817.42 = 21,635.55 : x
  2. Step 2: Convert to fraction form
    30,498.22/45,817.42 = 21,635.55/x
  3. Step 3: Cross multiply
    30,498.22x = 45,817.42 × 21,635.55
  4. Step 4: Simplify right side
    30,498.22x = 991,285,280.14
  5. Step 5: Solve for x
    x = 991,285,280.14/30,498.22
  6. Step 6: Final answer
    x = 32,503.05

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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.