Home / 25,336.78-38,013.37-12,187.44

Finding the Fourth Proportional to 25,336.78, 38,013.37 and 12,187.44

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Solution

The fourth proportional to 25,336.78, 38,013.37 and 12,187.44 is: 18,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,336.78 : 38,013.37 = 12,187.44 : x
  2. Step 2: Convert to fraction form
    25,336.78/38,013.37 = 12,187.44/x
  3. Step 3: Cross multiply
    25,336.78x = 38,013.37 × 12,187.44
  4. Step 4: Simplify right side
    25,336.78x = 463,285,666.07
  5. Step 5: Solve for x
    x = 463,285,666.07/25,336.78
  6. Step 6: Final answer
    x = 18,285.10

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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.