Home / 39,918.08-55,089.42-22,013.06

Finding the Fourth Proportional to 39,918.08, 55,089.42 and 22,013.06

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Solution

The fourth proportional to 39,918.08, 55,089.42 and 22,013.06 is: 30,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.08 : 55,089.42 = 22,013.06 : x
  2. Step 2: Convert to fraction form
    39,918.08/55,089.42 = 22,013.06/x
  3. Step 3: Cross multiply
    39,918.08x = 55,089.42 × 22,013.06
  4. Step 4: Simplify right side
    39,918.08x = 1,212,686,707.83
  5. Step 5: Solve for x
    x = 1,212,686,707.83/39,918.08
  6. Step 6: Final answer
    x = 30,379.38

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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.