Home / 20,211.54-30,300.03-13,270.74

Finding the Fourth Proportional to 20,211.54, 30,300.03 and 13,270.74

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Solution

The fourth proportional to 20,211.54, 30,300.03 and 13,270.74 is: 19,894.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.54 : 30,300.03 = 13,270.74 : x
  2. Step 2: Convert to fraction form
    20,211.54/30,300.03 = 13,270.74/x
  3. Step 3: Cross multiply
    20,211.54x = 30,300.03 × 13,270.74
  4. Step 4: Simplify right side
    20,211.54x = 402,103,820.12
  5. Step 5: Solve for x
    x = 402,103,820.12/20,211.54
  6. Step 6: Final answer
    x = 19,894.76

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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.