Home / 20,836.48-28,683.84-16,111.84

Finding the Fourth Proportional to 20,836.48, 28,683.84 and 16,111.84

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Solution

The fourth proportional to 20,836.48, 28,683.84 and 16,111.84 is: 22,179.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.48 : 28,683.84 = 16,111.84 : x
  2. Step 2: Convert to fraction form
    20,836.48/28,683.84 = 16,111.84/x
  3. Step 3: Cross multiply
    20,836.48x = 28,683.84 × 16,111.84
  4. Step 4: Simplify right side
    20,836.48x = 462,149,440.67
  5. Step 5: Solve for x
    x = 462,149,440.67/20,836.48
  6. Step 6: Final answer
    x = 22,179.82

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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.