Home / 20,211.36-30,298.56-17,111.34

Finding the Fourth Proportional to 20,211.36, 30,298.56 and 17,111.34

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Solution

The fourth proportional to 20,211.36, 30,298.56 and 17,111.34 is: 25,651.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.36 : 30,298.56 = 17,111.34 : x
  2. Step 2: Convert to fraction form
    20,211.36/30,298.56 = 17,111.34/x
  3. Step 3: Cross multiply
    20,211.36x = 30,298.56 × 17,111.34
  4. Step 4: Simplify right side
    20,211.36x = 518,448,961.67
  5. Step 5: Solve for x
    x = 518,448,961.67/20,211.36
  6. Step 6: Final answer
    x = 25,651.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.