Home / 39,689.80-54,767.76-22,698.48

Finding the Fourth Proportional to 39,689.80, 54,767.76 and 22,698.48

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Solution

The fourth proportional to 39,689.80, 54,767.76 and 22,698.48 is: 31,321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,689.80 : 54,767.76 = 22,698.48 : x
  2. Step 2: Convert to fraction form
    39,689.80/54,767.76 = 22,698.48/x
  3. Step 3: Cross multiply
    39,689.80x = 54,767.76 × 22,698.48
  4. Step 4: Simplify right side
    39,689.80x = 1,243,144,905.00
  5. Step 5: Solve for x
    x = 1,243,144,905.00/39,689.80
  6. Step 6: Final answer
    x = 31,321.52

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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.