Home / 39,784.93-54,903.37-21,881.07

Finding the Fourth Proportional to 39,784.93, 54,903.37 and 21,881.07

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Solution

The fourth proportional to 39,784.93, 54,903.37 and 21,881.07 is: 30,195.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,784.93 : 54,903.37 = 21,881.07 : x
  2. Step 2: Convert to fraction form
    39,784.93/54,903.37 = 21,881.07/x
  3. Step 3: Cross multiply
    39,784.93x = 54,903.37 × 21,881.07
  4. Step 4: Simplify right side
    39,784.93x = 1,201,344,482.21
  5. Step 5: Solve for x
    x = 1,201,344,482.21/39,784.93
  6. Step 6: Final answer
    x = 30,195.97

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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.