Home / 30,211.52-41,692.80-18,277.04

Finding the Fourth Proportional to 30,211.52, 41,692.80 and 18,277.04

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Solution

The fourth proportional to 30,211.52, 41,692.80 and 18,277.04 is: 25,222.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.52 : 41,692.80 = 18,277.04 : x
  2. Step 2: Convert to fraction form
    30,211.52/41,692.80 = 18,277.04/x
  3. Step 3: Cross multiply
    30,211.52x = 41,692.80 × 18,277.04
  4. Step 4: Simplify right side
    30,211.52x = 762,020,973.31
  5. Step 5: Solve for x
    x = 762,020,973.31/30,211.52
  6. Step 6: Final answer
    x = 25,222.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.