Home / 27,161.60-40,743.20-12,926.40

Finding the Fourth Proportional to 27,161.60, 40,743.20 and 12,926.40

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Solution

The fourth proportional to 27,161.60, 40,743.20 and 12,926.40 is: 19,389.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,161.60 : 40,743.20 = 12,926.40 : x
  2. Step 2: Convert to fraction form
    27,161.60/40,743.20 = 12,926.40/x
  3. Step 3: Cross multiply
    27,161.60x = 40,743.20 × 12,926.40
  4. Step 4: Simplify right side
    27,161.60x = 526,662,900.48
  5. Step 5: Solve for x
    x = 526,662,900.48/27,161.60
  6. Step 6: Final answer
    x = 19,389.98

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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.