Home / 27,369.84-37,780.59-21,308.07

Finding the Fourth Proportional to 27,369.84, 37,780.59 and 21,308.07

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Solution

The fourth proportional to 27,369.84, 37,780.59 and 21,308.07 is: 29,413.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,369.84 : 37,780.59 = 21,308.07 : x
  2. Step 2: Convert to fraction form
    27,369.84/37,780.59 = 21,308.07/x
  3. Step 3: Cross multiply
    27,369.84x = 37,780.59 × 21,308.07
  4. Step 4: Simplify right side
    27,369.84x = 805,031,456.36
  5. Step 5: Solve for x
    x = 805,031,456.36/27,369.84
  6. Step 6: Final answer
    x = 29,413.09

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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.