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Finding the Fourth Proportional to 25,598.93, 38,387.12 and 12,940.89

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Solution

The fourth proportional to 25,598.93, 38,387.12 and 12,940.89 is: 19,405.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,598.93 : 38,387.12 = 12,940.89 : x
  2. Step 2: Convert to fraction form
    25,598.93/38,387.12 = 12,940.89/x
  3. Step 3: Cross multiply
    25,598.93x = 38,387.12 × 12,940.89
  4. Step 4: Simplify right side
    25,598.93x = 496,763,432.63
  5. Step 5: Solve for x
    x = 496,763,432.63/25,598.93
  6. Step 6: Final answer
    x = 19,405.64

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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.