Home / 25,647.39-38,458.72-12,127.29

Finding the Fourth Proportional to 25,647.39, 38,458.72 and 12,127.29

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Solution

The fourth proportional to 25,647.39, 38,458.72 and 12,127.29 is: 18,185.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,647.39 : 38,458.72 = 12,127.29 : x
  2. Step 2: Convert to fraction form
    25,647.39/38,458.72 = 12,127.29/x
  3. Step 3: Cross multiply
    25,647.39x = 38,458.72 × 12,127.29
  4. Step 4: Simplify right side
    25,647.39x = 466,400,050.47
  5. Step 5: Solve for x
    x = 466,400,050.47/25,647.39
  6. Step 6: Final answer
    x = 18,185.09

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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.