Home / 20,113.68-27,877.44-19,740.36

Finding the Fourth Proportional to 20,113.68, 27,877.44 and 19,740.36

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Solution

The fourth proportional to 20,113.68, 27,877.44 and 19,740.36 is: 27,360.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.68 : 27,877.44 = 19,740.36 : x
  2. Step 2: Convert to fraction form
    20,113.68/27,877.44 = 19,740.36/x
  3. Step 3: Cross multiply
    20,113.68x = 27,877.44 × 19,740.36
  4. Step 4: Simplify right side
    20,113.68x = 550,310,701.48
  5. Step 5: Solve for x
    x = 550,310,701.48/20,113.68
  6. Step 6: Final answer
    x = 27,360.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.