Home / 20,314.19-30,465.90-5,519.63

Finding the Fourth Proportional to 20,314.19, 30,465.90 and 5,519.63

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Solution

The fourth proportional to 20,314.19, 30,465.90 and 5,519.63 is: 8,277.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.19 : 30,465.90 = 5,519.63 : x
  2. Step 2: Convert to fraction form
    20,314.19/30,465.90 = 5,519.63/x
  3. Step 3: Cross multiply
    20,314.19x = 30,465.90 × 5,519.63
  4. Step 4: Simplify right side
    20,314.19x = 168,160,571.78
  5. Step 5: Solve for x
    x = 168,160,571.78/20,314.19
  6. Step 6: Final answer
    x = 8,277.98

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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.