Home / 39,109.94-53,971.86-21,204.97

Finding the Fourth Proportional to 39,109.94, 53,971.86 and 21,204.97

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Solution

The fourth proportional to 39,109.94, 53,971.86 and 21,204.97 is: 29,262.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,109.94 : 53,971.86 = 21,204.97 : x
  2. Step 2: Convert to fraction form
    39,109.94/53,971.86 = 21,204.97/x
  3. Step 3: Cross multiply
    39,109.94x = 53,971.86 × 21,204.97
  4. Step 4: Simplify right side
    39,109.94x = 1,144,471,457.70
  5. Step 5: Solve for x
    x = 1,144,471,457.70/39,109.94
  6. Step 6: Final answer
    x = 29,262.93

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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.