Home / 25,623.78-38,460.27-12,485.39

Finding the Fourth Proportional to 25,623.78, 38,460.27 and 12,485.39

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Solution

The fourth proportional to 25,623.78, 38,460.27 and 12,485.39 is: 18,740.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,623.78 : 38,460.27 = 12,485.39 : x
  2. Step 2: Convert to fraction form
    25,623.78/38,460.27 = 12,485.39/x
  3. Step 3: Cross multiply
    25,623.78x = 38,460.27 × 12,485.39
  4. Step 4: Simplify right side
    25,623.78x = 480,191,278.15
  5. Step 5: Solve for x
    x = 480,191,278.15/25,623.78
  6. Step 6: Final answer
    x = 18,740.06

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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.