Home / 20,050.50-30,086.76-10,190.63

Finding the Fourth Proportional to 20,050.50, 30,086.76 and 10,190.63

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Solution

The fourth proportional to 20,050.50, 30,086.76 and 10,190.63 is: 15,291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,050.50 : 30,086.76 = 10,190.63 : x
  2. Step 2: Convert to fraction form
    20,050.50/30,086.76 = 10,190.63/x
  3. Step 3: Cross multiply
    20,050.50x = 30,086.76 × 10,190.63
  4. Step 4: Simplify right side
    20,050.50x = 306,602,888.63
  5. Step 5: Solve for x
    x = 306,602,888.63/20,050.50
  6. Step 6: Final answer
    x = 15,291.53

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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.