Home / 19,780.77-27,296.06-11,283.23

Finding the Fourth Proportional to 19,780.77, 27,296.06 and 11,283.23

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Solution

The fourth proportional to 19,780.77, 27,296.06 and 11,283.23 is: 15,570.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.77 : 27,296.06 = 11,283.23 : x
  2. Step 2: Convert to fraction form
    19,780.77/27,296.06 = 11,283.23/x
  3. Step 3: Cross multiply
    19,780.77x = 27,296.06 × 11,283.23
  4. Step 4: Simplify right side
    19,780.77x = 307,987,734.90
  5. Step 5: Solve for x
    x = 307,987,734.90/19,780.77
  6. Step 6: Final answer
    x = 15,570.05

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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.