Home / 38,918.43-53,710.16-22,151.43

Finding the Fourth Proportional to 38,918.43, 53,710.16 and 22,151.43

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Solution

The fourth proportional to 38,918.43, 53,710.16 and 22,151.43 is: 30,570.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,918.43 : 53,710.16 = 22,151.43 : x
  2. Step 2: Convert to fraction form
    38,918.43/53,710.16 = 22,151.43/x
  3. Step 3: Cross multiply
    38,918.43x = 53,710.16 × 22,151.43
  4. Step 4: Simplify right side
    38,918.43x = 1,189,756,738.77
  5. Step 5: Solve for x
    x = 1,189,756,738.77/38,918.43
  6. Step 6: Final answer
    x = 30,570.52

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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.