Home / 19,988.20-27,583.71-11,036.32

Finding the Fourth Proportional to 19,988.20, 27,583.71 and 11,036.32

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Solution

The fourth proportional to 19,988.20, 27,583.71 and 11,036.32 is: 15,230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.20 : 27,583.71 = 11,036.32 : x
  2. Step 2: Convert to fraction form
    19,988.20/27,583.71 = 11,036.32/x
  3. Step 3: Cross multiply
    19,988.20x = 27,583.71 × 11,036.32
  4. Step 4: Simplify right side
    19,988.20x = 304,422,650.35
  5. Step 5: Solve for x
    x = 304,422,650.35/19,988.20
  6. Step 6: Final answer
    x = 15,230.12

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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.