Home / 25,475.20-38,218.20-7,704.40

Finding the Fourth Proportional to 25,475.20, 38,218.20 and 7,704.40

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Solution

The fourth proportional to 25,475.20, 38,218.20 and 7,704.40 is: 11,558.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,475.20 : 38,218.20 = 7,704.40 : x
  2. Step 2: Convert to fraction form
    25,475.20/38,218.20 = 7,704.40/x
  3. Step 3: Cross multiply
    25,475.20x = 38,218.20 × 7,704.40
  4. Step 4: Simplify right side
    25,475.20x = 294,448,300.08
  5. Step 5: Solve for x
    x = 294,448,300.08/25,475.20
  6. Step 6: Final answer
    x = 11,558.23

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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.