Home / 39,901.23-55,064.07-21,996.88

Finding the Fourth Proportional to 39,901.23, 55,064.07 and 21,996.88

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Solution

The fourth proportional to 39,901.23, 55,064.07 and 21,996.88 is: 30,355.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,901.23 : 55,064.07 = 21,996.88 : x
  2. Step 2: Convert to fraction form
    39,901.23/55,064.07 = 21,996.88/x
  3. Step 3: Cross multiply
    39,901.23x = 55,064.07 × 21,996.88
  4. Step 4: Simplify right side
    39,901.23x = 1,211,237,552.16
  5. Step 5: Solve for x
    x = 1,211,237,552.16/39,901.23
  6. Step 6: Final answer
    x = 30,355.89

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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.