Home / 20,148.55-27,818.84-12,598.54

Finding the Fourth Proportional to 20,148.55, 27,818.84 and 12,598.54

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Solution

The fourth proportional to 20,148.55, 27,818.84 and 12,598.54 is: 17,394.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.55 : 27,818.84 = 12,598.54 : x
  2. Step 2: Convert to fraction form
    20,148.55/27,818.84 = 12,598.54/x
  3. Step 3: Cross multiply
    20,148.55x = 27,818.84 × 12,598.54
  4. Step 4: Simplify right side
    20,148.55x = 350,476,730.44
  5. Step 5: Solve for x
    x = 350,476,730.44/20,148.55
  6. Step 6: Final answer
    x = 17,394.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.