Home / 27,623.07-38,115.57-15,521.16

Finding the Fourth Proportional to 27,623.07, 38,115.57 and 15,521.16

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Solution

The fourth proportional to 27,623.07, 38,115.57 and 15,521.16 is: 21,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,623.07 : 38,115.57 = 15,521.16 : x
  2. Step 2: Convert to fraction form
    27,623.07/38,115.57 = 15,521.16/x
  3. Step 3: Cross multiply
    27,623.07x = 38,115.57 × 15,521.16
  4. Step 4: Simplify right side
    27,623.07x = 591,597,860.46
  5. Step 5: Solve for x
    x = 591,597,860.46/27,623.07
  6. Step 6: Final answer
    x = 21,416.80

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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.