Home / 20,984.06-31,476.09-7,133.06

Finding the Fourth Proportional to 20,984.06, 31,476.09 and 7,133.06

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Solution

The fourth proportional to 20,984.06, 31,476.09 and 7,133.06 is: 10,699.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.06 : 31,476.09 = 7,133.06 : x
  2. Step 2: Convert to fraction form
    20,984.06/31,476.09 = 7,133.06/x
  3. Step 3: Cross multiply
    20,984.06x = 31,476.09 × 7,133.06
  4. Step 4: Simplify right side
    20,984.06x = 224,520,943.97
  5. Step 5: Solve for x
    x = 224,520,943.97/20,984.06
  6. Step 6: Final answer
    x = 10,699.59

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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.