Home / 20,425.40-30,637.08-8,576.12

Finding the Fourth Proportional to 20,425.40, 30,637.08 and 8,576.12

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Solution

The fourth proportional to 20,425.40, 30,637.08 and 8,576.12 is: 12,863.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,425.40 : 30,637.08 = 8,576.12 : x
  2. Step 2: Convert to fraction form
    20,425.40/30,637.08 = 8,576.12/x
  3. Step 3: Cross multiply
    20,425.40x = 30,637.08 × 8,576.12
  4. Step 4: Simplify right side
    20,425.40x = 262,747,274.53
  5. Step 5: Solve for x
    x = 262,747,274.53/20,425.40
  6. Step 6: Final answer
    x = 12,863.75

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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.