Home / 19,975.86-27,568.89-11,479.50

Finding the Fourth Proportional to 19,975.86, 27,568.89 and 11,479.50

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Solution

The fourth proportional to 19,975.86, 27,568.89 and 11,479.50 is: 15,842.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.86 : 27,568.89 = 11,479.50 : x
  2. Step 2: Convert to fraction form
    19,975.86/27,568.89 = 11,479.50/x
  3. Step 3: Cross multiply
    19,975.86x = 27,568.89 × 11,479.50
  4. Step 4: Simplify right side
    19,975.86x = 316,477,072.76
  5. Step 5: Solve for x
    x = 316,477,072.76/19,975.86
  6. Step 6: Final answer
    x = 15,842.98

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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.