Home / 20,055.85-30,113.34-11,188.50

Finding the Fourth Proportional to 20,055.85, 30,113.34 and 11,188.50

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Solution

The fourth proportional to 20,055.85, 30,113.34 and 11,188.50 is: 16,799.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.85 : 30,113.34 = 11,188.50 : x
  2. Step 2: Convert to fraction form
    20,055.85/30,113.34 = 11,188.50/x
  3. Step 3: Cross multiply
    20,055.85x = 30,113.34 × 11,188.50
  4. Step 4: Simplify right side
    20,055.85x = 336,922,949.71
  5. Step 5: Solve for x
    x = 336,922,949.71/20,055.85
  6. Step 6: Final answer
    x = 16,799.24

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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.