Home / 19,811.89-27,341.08-10,859.39

Finding the Fourth Proportional to 19,811.89, 27,341.08 and 10,859.39

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Solution

The fourth proportional to 19,811.89, 27,341.08 and 10,859.39 is: 14,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.89 : 27,341.08 = 10,859.39 : x
  2. Step 2: Convert to fraction form
    19,811.89/27,341.08 = 10,859.39/x
  3. Step 3: Cross multiply
    19,811.89x = 27,341.08 × 10,859.39
  4. Step 4: Simplify right side
    19,811.89x = 296,907,450.74
  5. Step 5: Solve for x
    x = 296,907,450.74/19,811.89
  6. Step 6: Final answer
    x = 14,986.33

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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.