Home / 20,270.11-30,405.16-14,758.53

Finding the Fourth Proportional to 20,270.11, 30,405.16 and 14,758.53

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Solution

The fourth proportional to 20,270.11, 30,405.16 and 14,758.53 is: 22,137.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.11 : 30,405.16 = 14,758.53 : x
  2. Step 2: Convert to fraction form
    20,270.11/30,405.16 = 14,758.53/x
  3. Step 3: Cross multiply
    20,270.11x = 30,405.16 × 14,758.53
  4. Step 4: Simplify right side
    20,270.11x = 448,735,315.10
  5. Step 5: Solve for x
    x = 448,735,315.10/20,270.11
  6. Step 6: Final answer
    x = 22,137.79

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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.