Home / 25,830.65-38,770.23-12,692.45

Finding the Fourth Proportional to 25,830.65, 38,770.23 and 12,692.45

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Solution

The fourth proportional to 25,830.65, 38,770.23 and 12,692.45 is: 19,050.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,830.65 : 38,770.23 = 12,692.45 : x
  2. Step 2: Convert to fraction form
    25,830.65/38,770.23 = 12,692.45/x
  3. Step 3: Cross multiply
    25,830.65x = 38,770.23 × 12,692.45
  4. Step 4: Simplify right side
    25,830.65x = 492,089,205.76
  5. Step 5: Solve for x
    x = 492,089,205.76/25,830.65
  6. Step 6: Final answer
    x = 19,050.59

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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.