Home / 27,126.63-40,684.48-18,881.64

Finding the Fourth Proportional to 27,126.63, 40,684.48 and 18,881.64

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Solution

The fourth proportional to 27,126.63, 40,684.48 and 18,881.64 is: 28,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,126.63 : 40,684.48 = 18,881.64 : x
  2. Step 2: Convert to fraction form
    27,126.63/40,684.48 = 18,881.64/x
  3. Step 3: Cross multiply
    27,126.63x = 40,684.48 × 18,881.64
  4. Step 4: Simplify right side
    27,126.63x = 768,189,657.74
  5. Step 5: Solve for x
    x = 768,189,657.74/27,126.63
  6. Step 6: Final answer
    x = 28,318.65

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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.