Home / 39,898.00-55,058.20-21,993.09

Finding the Fourth Proportional to 39,898.00, 55,058.20 and 21,993.09

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Solution

The fourth proportional to 39,898.00, 55,058.20 and 21,993.09 is: 30,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,898.00 : 55,058.20 = 21,993.09 : x
  2. Step 2: Convert to fraction form
    39,898.00/55,058.20 = 21,993.09/x
  3. Step 3: Cross multiply
    39,898.00x = 55,058.20 × 21,993.09
  4. Step 4: Simplify right side
    39,898.00x = 1,210,899,686.39
  5. Step 5: Solve for x
    x = 1,210,899,686.39/39,898.00
  6. Step 6: Final answer
    x = 30,349.88

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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.