Home / 27,749.88-38,294.64-15,174.72

Finding the Fourth Proportional to 27,749.88, 38,294.64 and 15,174.72

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Solution

The fourth proportional to 27,749.88, 38,294.64 and 15,174.72 is: 20,941.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,749.88 : 38,294.64 = 15,174.72 : x
  2. Step 2: Convert to fraction form
    27,749.88/38,294.64 = 15,174.72/x
  3. Step 3: Cross multiply
    27,749.88x = 38,294.64 × 15,174.72
  4. Step 4: Simplify right side
    27,749.88x = 581,110,439.50
  5. Step 5: Solve for x
    x = 581,110,439.50/27,749.88
  6. Step 6: Final answer
    x = 20,941.01

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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.