Home / 27,620.88-38,116.62-15,045.63

Finding the Fourth Proportional to 27,620.88, 38,116.62 and 15,045.63

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Solution

The fourth proportional to 27,620.88, 38,116.62 and 15,045.63 is: 20,762.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.88 : 38,116.62 = 15,045.63 : x
  2. Step 2: Convert to fraction form
    27,620.88/38,116.62 = 15,045.63/x
  3. Step 3: Cross multiply
    27,620.88x = 38,116.62 × 15,045.63
  4. Step 4: Simplify right side
    27,620.88x = 573,488,561.37
  5. Step 5: Solve for x
    x = 573,488,561.37/27,620.88
  6. Step 6: Final answer
    x = 20,762.86

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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.