Home / 15,428.31-23,138.85-4,336.05

Finding the Fourth Proportional to 15,428.31, 23,138.85 and 4,336.05

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Solution

The fourth proportional to 15,428.31, 23,138.85 and 4,336.05 is: 6,503.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.31 : 23,138.85 = 4,336.05 : x
  2. Step 2: Convert to fraction form
    15,428.31/23,138.85 = 4,336.05/x
  3. Step 3: Cross multiply
    15,428.31x = 23,138.85 × 4,336.05
  4. Step 4: Simplify right side
    15,428.31x = 100,331,210.54
  5. Step 5: Solve for x
    x = 100,331,210.54/15,428.31
  6. Step 6: Final answer
    x = 6,503.06

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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.