Home / 39,717.72-54,810.54-21,813.93

Finding the Fourth Proportional to 39,717.72, 54,810.54 and 21,813.93

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Solution

The fourth proportional to 39,717.72, 54,810.54 and 21,813.93 is: 30,103.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,717.72 : 54,810.54 = 21,813.93 : x
  2. Step 2: Convert to fraction form
    39,717.72/54,810.54 = 21,813.93/x
  3. Step 3: Cross multiply
    39,717.72x = 54,810.54 × 21,813.93
  4. Step 4: Simplify right side
    39,717.72x = 1,195,633,282.82
  5. Step 5: Solve for x
    x = 1,195,633,282.82/39,717.72
  6. Step 6: Final answer
    x = 30,103.27

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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.