Home / 19,788.35-27,311.01-11,290.46

Finding the Fourth Proportional to 19,788.35, 27,311.01 and 11,290.46

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Solution

The fourth proportional to 19,788.35, 27,311.01 and 11,290.46 is: 15,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.35 : 27,311.01 = 11,290.46 : x
  2. Step 2: Convert to fraction form
    19,788.35/27,311.01 = 11,290.46/x
  3. Step 3: Cross multiply
    19,788.35x = 27,311.01 × 11,290.46
  4. Step 4: Simplify right side
    19,788.35x = 308,353,865.96
  5. Step 5: Solve for x
    x = 308,353,865.96/19,788.35
  6. Step 6: Final answer
    x = 15,582.60

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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.