Home / 19,821.49-27,349.37-11,433.13

Finding the Fourth Proportional to 19,821.49, 27,349.37 and 11,433.13

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Solution

The fourth proportional to 19,821.49, 27,349.37 and 11,433.13 is: 15,775.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.49 : 27,349.37 = 11,433.13 : x
  2. Step 2: Convert to fraction form
    19,821.49/27,349.37 = 11,433.13/x
  3. Step 3: Cross multiply
    19,821.49x = 27,349.37 × 11,433.13
  4. Step 4: Simplify right side
    19,821.49x = 312,688,765.88
  5. Step 5: Solve for x
    x = 312,688,765.88/19,821.49
  6. Step 6: Final answer
    x = 15,775.24

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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.