Home / 39,783.39-54,844.54-31,645.68

Finding the Fourth Proportional to 39,783.39, 54,844.54 and 31,645.68

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Solution

The fourth proportional to 39,783.39, 54,844.54 and 31,645.68 is: 43,626.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,783.39 : 54,844.54 = 31,645.68 : x
  2. Step 2: Convert to fraction form
    39,783.39/54,844.54 = 31,645.68/x
  3. Step 3: Cross multiply
    39,783.39x = 54,844.54 × 31,645.68
  4. Step 4: Simplify right side
    39,783.39x = 1,735,592,762.59
  5. Step 5: Solve for x
    x = 1,735,592,762.59/39,783.39
  6. Step 6: Final answer
    x = 43,626.07

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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.