Home / 39,005.07-53,826.84-21,100.04

Finding the Fourth Proportional to 39,005.07, 53,826.84 and 21,100.04

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Solution

The fourth proportional to 39,005.07, 53,826.84 and 21,100.04 is: 29,117.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,005.07 : 53,826.84 = 21,100.04 : x
  2. Step 2: Convert to fraction form
    39,005.07/53,826.84 = 21,100.04/x
  3. Step 3: Cross multiply
    39,005.07x = 53,826.84 × 21,100.04
  4. Step 4: Simplify right side
    39,005.07x = 1,135,748,207.94
  5. Step 5: Solve for x
    x = 1,135,748,207.94/39,005.07
  6. Step 6: Final answer
    x = 29,117.96

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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.