Home / 20,484.20-30,738.23-8,637.26

Finding the Fourth Proportional to 20,484.20, 30,738.23 and 8,637.26

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Solution

The fourth proportional to 20,484.20, 30,738.23 and 8,637.26 is: 12,960.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.20 : 30,738.23 = 8,637.26 : x
  2. Step 2: Convert to fraction form
    20,484.20/30,738.23 = 8,637.26/x
  3. Step 3: Cross multiply
    20,484.20x = 30,738.23 × 8,637.26
  4. Step 4: Simplify right side
    20,484.20x = 265,493,887.57
  5. Step 5: Solve for x
    x = 265,493,887.57/20,484.20
  6. Step 6: Final answer
    x = 12,960.91

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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.