Home / 19,875.26-27,421.87-11,914.58

Finding the Fourth Proportional to 19,875.26, 27,421.87 and 11,914.58

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Solution

The fourth proportional to 19,875.26, 27,421.87 and 11,914.58 is: 16,438.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.26 : 27,421.87 = 11,914.58 : x
  2. Step 2: Convert to fraction form
    19,875.26/27,421.87 = 11,914.58/x
  3. Step 3: Cross multiply
    19,875.26x = 27,421.87 × 11,914.58
  4. Step 4: Simplify right side
    19,875.26x = 326,720,063.86
  5. Step 5: Solve for x
    x = 326,720,063.86/19,875.26
  6. Step 6: Final answer
    x = 16,438.53

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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.