Home / 20,426.80-30,637.20-6,383.56

Finding the Fourth Proportional to 20,426.80, 30,637.20 and 6,383.56

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Solution

The fourth proportional to 20,426.80, 30,637.20 and 6,383.56 is: 9,574.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.80 : 30,637.20 = 6,383.56 : x
  2. Step 2: Convert to fraction form
    20,426.80/30,637.20 = 6,383.56/x
  3. Step 3: Cross multiply
    20,426.80x = 30,637.20 × 6,383.56
  4. Step 4: Simplify right side
    20,426.80x = 195,574,404.43
  5. Step 5: Solve for x
    x = 195,574,404.43/20,426.80
  6. Step 6: Final answer
    x = 9,574.40

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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.