Home / 27,140.87-40,725.20-12,925.43

Finding the Fourth Proportional to 27,140.87, 40,725.20 and 12,925.43

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Solution

The fourth proportional to 27,140.87, 40,725.20 and 12,925.43 is: 19,394.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,140.87 : 40,725.20 = 12,925.43 : x
  2. Step 2: Convert to fraction form
    27,140.87/40,725.20 = 12,925.43/x
  3. Step 3: Cross multiply
    27,140.87x = 40,725.20 × 12,925.43
  4. Step 4: Simplify right side
    27,140.87x = 526,390,453.58
  5. Step 5: Solve for x
    x = 526,390,453.58/27,140.87
  6. Step 6: Final answer
    x = 19,394.75

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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.