Home / 27,611.86-38,104.55-15,675.40

Finding the Fourth Proportional to 27,611.86, 38,104.55 and 15,675.40

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Solution

The fourth proportional to 27,611.86, 38,104.55 and 15,675.40 is: 21,632.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,611.86 : 38,104.55 = 15,675.40 : x
  2. Step 2: Convert to fraction form
    27,611.86/38,104.55 = 15,675.40/x
  3. Step 3: Cross multiply
    27,611.86x = 38,104.55 × 15,675.40
  4. Step 4: Simplify right side
    27,611.86x = 597,304,063.07
  5. Step 5: Solve for x
    x = 597,304,063.07/27,611.86
  6. Step 6: Final answer
    x = 21,632.16

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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.