Home / 20,548.21-30,823.85-5,758.28

Finding the Fourth Proportional to 20,548.21, 30,823.85 and 5,758.28

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Solution

The fourth proportional to 20,548.21, 30,823.85 and 5,758.28 is: 8,637.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.21 : 30,823.85 = 5,758.28 : x
  2. Step 2: Convert to fraction form
    20,548.21/30,823.85 = 5,758.28/x
  3. Step 3: Cross multiply
    20,548.21x = 30,823.85 × 5,758.28
  4. Step 4: Simplify right side
    20,548.21x = 177,492,358.98
  5. Step 5: Solve for x
    x = 177,492,358.98/20,548.21
  6. Step 6: Final answer
    x = 8,637.85

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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.