Home / 20,040.87-27,656.84-11,089.01

Finding the Fourth Proportional to 20,040.87, 27,656.84 and 11,089.01

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Solution

The fourth proportional to 20,040.87, 27,656.84 and 11,089.01 is: 15,303.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.87 : 27,656.84 = 11,089.01 : x
  2. Step 2: Convert to fraction form
    20,040.87/27,656.84 = 11,089.01/x
  3. Step 3: Cross multiply
    20,040.87x = 27,656.84 × 11,089.01
  4. Step 4: Simplify right side
    20,040.87x = 306,686,781.60
  5. Step 5: Solve for x
    x = 306,686,781.60/20,040.87
  6. Step 6: Final answer
    x = 15,303.07

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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.