Home / 20,895.70-31,321.54-6,852.07

Finding the Fourth Proportional to 20,895.70, 31,321.54 and 6,852.07

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Solution

The fourth proportional to 20,895.70, 31,321.54 and 6,852.07 is: 10,270.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.70 : 31,321.54 = 6,852.07 : x
  2. Step 2: Convert to fraction form
    20,895.70/31,321.54 = 6,852.07/x
  3. Step 3: Cross multiply
    20,895.70x = 31,321.54 × 6,852.07
  4. Step 4: Simplify right side
    20,895.70x = 214,617,384.59
  5. Step 5: Solve for x
    x = 214,617,384.59/20,895.70
  6. Step 6: Final answer
    x = 10,270.89

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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.