Home / 30,611.08-45,930.75-13,976.22

Finding the Fourth Proportional to 30,611.08, 45,930.75 and 13,976.22

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Solution

The fourth proportional to 30,611.08, 45,930.75 and 13,976.22 is: 20,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.08 : 45,930.75 = 13,976.22 : x
  2. Step 2: Convert to fraction form
    30,611.08/45,930.75 = 13,976.22/x
  3. Step 3: Cross multiply
    30,611.08x = 45,930.75 × 13,976.22
  4. Step 4: Simplify right side
    30,611.08x = 641,938,266.77
  5. Step 5: Solve for x
    x = 641,938,266.77/30,611.08
  6. Step 6: Final answer
    x = 20,970.78

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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.