Home / 27,177.10-40,757.24-13,128.40

Finding the Fourth Proportional to 27,177.10, 40,757.24 and 13,128.40

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Solution

The fourth proportional to 27,177.10, 40,757.24 and 13,128.40 is: 19,688.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,177.10 : 40,757.24 = 13,128.40 : x
  2. Step 2: Convert to fraction form
    27,177.10/40,757.24 = 13,128.40/x
  3. Step 3: Cross multiply
    27,177.10x = 40,757.24 × 13,128.40
  4. Step 4: Simplify right side
    27,177.10x = 535,077,349.62
  5. Step 5: Solve for x
    x = 535,077,349.62/27,177.10
  6. Step 6: Final answer
    x = 19,688.54

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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.