Home / 39,673.40-54,749.86-21,768.08

Finding the Fourth Proportional to 39,673.40, 54,749.86 and 21,768.08

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Solution

The fourth proportional to 39,673.40, 54,749.86 and 21,768.08 is: 30,040.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,673.40 : 54,749.86 = 21,768.08 : x
  2. Step 2: Convert to fraction form
    39,673.40/54,749.86 = 21,768.08/x
  3. Step 3: Cross multiply
    39,673.40x = 54,749.86 × 21,768.08
  4. Step 4: Simplify right side
    39,673.40x = 1,191,799,332.47
  5. Step 5: Solve for x
    x = 1,191,799,332.47/39,673.40
  6. Step 6: Final answer
    x = 30,040.26

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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.