Home / 39,901.01-55,063.12-21,996.03

Finding the Fourth Proportional to 39,901.01, 55,063.12 and 21,996.03

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Solution

The fourth proportional to 39,901.01, 55,063.12 and 21,996.03 is: 30,354.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,901.01 : 55,063.12 = 21,996.03 : x
  2. Step 2: Convert to fraction form
    39,901.01/55,063.12 = 21,996.03/x
  3. Step 3: Cross multiply
    39,901.01x = 55,063.12 × 21,996.03
  4. Step 4: Simplify right side
    39,901.01x = 1,211,170,039.41
  5. Step 5: Solve for x
    x = 1,211,170,039.41/39,901.01
  6. Step 6: Final answer
    x = 30,354.37

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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.