Home / 27,750.68-38,295.16-15,174.64

Finding the Fourth Proportional to 27,750.68, 38,295.16 and 15,174.64

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Solution

The fourth proportional to 27,750.68, 38,295.16 and 15,174.64 is: 20,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,750.68 : 38,295.16 = 15,174.64 : x
  2. Step 2: Convert to fraction form
    27,750.68/38,295.16 = 15,174.64/x
  3. Step 3: Cross multiply
    27,750.68x = 38,295.16 × 15,174.64
  4. Step 4: Simplify right side
    27,750.68x = 581,115,266.74
  5. Step 5: Solve for x
    x = 581,115,266.74/27,750.68
  6. Step 6: Final answer
    x = 20,940.58

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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.