Home / 15,428.56-23,139.22-4,336.30

Finding the Fourth Proportional to 15,428.56, 23,139.22 and 4,336.30

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Solution

The fourth proportional to 15,428.56, 23,139.22 and 4,336.30 is: 6,503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.56 : 23,139.22 = 4,336.30 : x
  2. Step 2: Convert to fraction form
    15,428.56/23,139.22 = 4,336.30/x
  3. Step 3: Cross multiply
    15,428.56x = 23,139.22 × 4,336.30
  4. Step 4: Simplify right side
    15,428.56x = 100,338,578.00
  5. Step 5: Solve for x
    x = 100,338,578.00/15,428.56
  6. Step 6: Final answer
    x = 6,503.43

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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.