Home / 20,939.58-28,883.70-14,960.84

Finding the Fourth Proportional to 20,939.58, 28,883.70 and 14,960.84

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Solution

The fourth proportional to 20,939.58, 28,883.70 and 14,960.84 is: 20,636.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,939.58 : 28,883.70 = 14,960.84 : x
  2. Step 2: Convert to fraction form
    20,939.58/28,883.70 = 14,960.84/x
  3. Step 3: Cross multiply
    20,939.58x = 28,883.70 × 14,960.84
  4. Step 4: Simplify right side
    20,939.58x = 432,124,269.89
  5. Step 5: Solve for x
    x = 432,124,269.89/20,939.58
  6. Step 6: Final answer
    x = 20,636.72

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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.