Home / 25,485.16-38,193.18-13,181.80

Finding the Fourth Proportional to 25,485.16, 38,193.18 and 13,181.80

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Solution

The fourth proportional to 25,485.16, 38,193.18 and 13,181.80 is: 19,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,485.16 : 38,193.18 = 13,181.80 : x
  2. Step 2: Convert to fraction form
    25,485.16/38,193.18 = 13,181.80/x
  3. Step 3: Cross multiply
    25,485.16x = 38,193.18 × 13,181.80
  4. Step 4: Simplify right side
    25,485.16x = 503,454,860.12
  5. Step 5: Solve for x
    x = 503,454,860.12/25,485.16
  6. Step 6: Final answer
    x = 19,754.82

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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.