Home / 18,488.40-27,556.93-17,437.60

Finding the Fourth Proportional to 18,488.40, 27,556.93 and 17,437.60

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Solution

The fourth proportional to 18,488.40, 27,556.93 and 17,437.60 is: 25,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.40 : 27,556.93 = 17,437.60 : x
  2. Step 2: Convert to fraction form
    18,488.40/27,556.93 = 17,437.60/x
  3. Step 3: Cross multiply
    18,488.40x = 27,556.93 × 17,437.60
  4. Step 4: Simplify right side
    18,488.40x = 480,526,722.57
  5. Step 5: Solve for x
    x = 480,526,722.57/18,488.40
  6. Step 6: Final answer
    x = 25,990.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.