Home / 20,328.29-28,056.06-11,835.44

Finding the Fourth Proportional to 20,328.29, 28,056.06 and 11,835.44

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Solution

The fourth proportional to 20,328.29, 28,056.06 and 11,835.44 is: 16,334.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328.29 : 28,056.06 = 11,835.44 : x
  2. Step 2: Convert to fraction form
    20,328.29/28,056.06 = 11,835.44/x
  3. Step 3: Cross multiply
    20,328.29x = 28,056.06 × 11,835.44
  4. Step 4: Simplify right side
    20,328.29x = 332,055,674.49
  5. Step 5: Solve for x
    x = 332,055,674.49/20,328.29
  6. Step 6: Final answer
    x = 16,334.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.