Home / 19,927.80-27,499.31-11,429.49

Finding the Fourth Proportional to 19,927.80, 27,499.31 and 11,429.49

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Solution

The fourth proportional to 19,927.80, 27,499.31 and 11,429.49 is: 15,772.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927.80 : 27,499.31 = 11,429.49 : x
  2. Step 2: Convert to fraction form
    19,927.80/27,499.31 = 11,429.49/x
  3. Step 3: Cross multiply
    19,927.80x = 27,499.31 × 11,429.49
  4. Step 4: Simplify right side
    19,927.80x = 314,302,951.16
  5. Step 5: Solve for x
    x = 314,302,951.16/19,927.80
  6. Step 6: Final answer
    x = 15,772.08

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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.