Home / 20,823.74-31,235.58-6,783.74

Finding the Fourth Proportional to 20,823.74, 31,235.58 and 6,783.74

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Solution

The fourth proportional to 20,823.74, 31,235.58 and 6,783.74 is: 10,175.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823.74 : 31,235.58 = 6,783.74 : x
  2. Step 2: Convert to fraction form
    20,823.74/31,235.58 = 6,783.74/x
  3. Step 3: Cross multiply
    20,823.74x = 31,235.58 × 6,783.74
  4. Step 4: Simplify right side
    20,823.74x = 211,894,187.24
  5. Step 5: Solve for x
    x = 211,894,187.24/20,823.74
  6. Step 6: Final answer
    x = 10,175.61

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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.