Home / 25,485.21-38,228.22-9,690.48

Finding the Fourth Proportional to 25,485.21, 38,228.22 and 9,690.48

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Solution

The fourth proportional to 25,485.21, 38,228.22 and 9,690.48 is: 14,535.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,485.21 : 38,228.22 = 9,690.48 : x
  2. Step 2: Convert to fraction form
    25,485.21/38,228.22 = 9,690.48/x
  3. Step 3: Cross multiply
    25,485.21x = 38,228.22 × 9,690.48
  4. Step 4: Simplify right side
    25,485.21x = 370,449,801.35
  5. Step 5: Solve for x
    x = 370,449,801.35/25,485.21
  6. Step 6: Final answer
    x = 14,535.87

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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.