Home / 39,905.73-55,070.28-22,001.37

Finding the Fourth Proportional to 39,905.73, 55,070.28 and 22,001.37

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Solution

The fourth proportional to 39,905.73, 55,070.28 and 22,001.37 is: 30,362.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.73 : 55,070.28 = 22,001.37 : x
  2. Step 2: Convert to fraction form
    39,905.73/55,070.28 = 22,001.37/x
  3. Step 3: Cross multiply
    39,905.73x = 55,070.28 × 22,001.37
  4. Step 4: Simplify right side
    39,905.73x = 1,211,621,606.28
  5. Step 5: Solve for x
    x = 1,211,621,606.28/39,905.73
  6. Step 6: Final answer
    x = 30,362.10

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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.