Home / 39,055.70-53,896.17-21,150.56

Finding the Fourth Proportional to 39,055.70, 53,896.17 and 21,150.56

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Solution

The fourth proportional to 39,055.70, 53,896.17 and 21,150.56 is: 29,187.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,055.70 : 53,896.17 = 21,150.56 : x
  2. Step 2: Convert to fraction form
    39,055.70/53,896.17 = 21,150.56/x
  3. Step 3: Cross multiply
    39,055.70x = 53,896.17 × 21,150.56
  4. Step 4: Simplify right side
    39,055.70x = 1,139,934,177.36
  5. Step 5: Solve for x
    x = 1,139,934,177.36/39,055.70
  6. Step 6: Final answer
    x = 29,187.40

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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.