Home / 25,692.30-38,538.45-19,860.30

Finding the Fourth Proportional to 25,692.30, 38,538.45 and 19,860.30

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Solution

The fourth proportional to 25,692.30, 38,538.45 and 19,860.30 is: 29,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,692.30 : 38,538.45 = 19,860.30 : x
  2. Step 2: Convert to fraction form
    25,692.30/38,538.45 = 19,860.30/x
  3. Step 3: Cross multiply
    25,692.30x = 38,538.45 × 19,860.30
  4. Step 4: Simplify right side
    25,692.30x = 765,385,178.54
  5. Step 5: Solve for x
    x = 765,385,178.54/25,692.30
  6. Step 6: Final answer
    x = 29,790.45

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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.