Home / 27,780.09-38,336.23-15,032.99

Finding the Fourth Proportional to 27,780.09, 38,336.23 and 15,032.99

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Solution

The fourth proportional to 27,780.09, 38,336.23 and 15,032.99 is: 20,745.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,780.09 : 38,336.23 = 15,032.99 : x
  2. Step 2: Convert to fraction form
    27,780.09/38,336.23 = 15,032.99/x
  3. Step 3: Cross multiply
    27,780.09x = 38,336.23 × 15,032.99
  4. Step 4: Simplify right side
    27,780.09x = 576,308,220.49
  5. Step 5: Solve for x
    x = 576,308,220.49/27,780.09
  6. Step 6: Final answer
    x = 20,745.37

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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.