Home / 20,733.67-28,612.47-12,235.80

Finding the Fourth Proportional to 20,733.67, 28,612.47 and 12,235.80

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Solution

The fourth proportional to 20,733.67, 28,612.47 and 12,235.80 is: 16,885.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.67 : 28,612.47 = 12,235.80 : x
  2. Step 2: Convert to fraction form
    20,733.67/28,612.47 = 12,235.80/x
  3. Step 3: Cross multiply
    20,733.67x = 28,612.47 × 12,235.80
  4. Step 4: Simplify right side
    20,733.67x = 350,096,460.43
  5. Step 5: Solve for x
    x = 350,096,460.43/20,733.67
  6. Step 6: Final answer
    x = 16,885.41

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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.