Home / 19,811.27-27,339.49-10,858.85

Finding the Fourth Proportional to 19,811.27, 27,339.49 and 10,858.85

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Solution

The fourth proportional to 19,811.27, 27,339.49 and 10,858.85 is: 14,985.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.27 : 27,339.49 = 10,858.85 : x
  2. Step 2: Convert to fraction form
    19,811.27/27,339.49 = 10,858.85/x
  3. Step 3: Cross multiply
    19,811.27x = 27,339.49 × 10,858.85
  4. Step 4: Simplify right side
    19,811.27x = 296,875,420.99
  5. Step 5: Solve for x
    x = 296,875,420.99/19,811.27
  6. Step 6: Final answer
    x = 14,985.18

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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.