Home / 27,897.76-38,529.12-17,312.64

Finding the Fourth Proportional to 27,897.76, 38,529.12 and 17,312.64

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Solution

The fourth proportional to 27,897.76, 38,529.12 and 17,312.64 is: 23,910.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,897.76 : 38,529.12 = 17,312.64 : x
  2. Step 2: Convert to fraction form
    27,897.76/38,529.12 = 17,312.64/x
  3. Step 3: Cross multiply
    27,897.76x = 38,529.12 × 17,312.64
  4. Step 4: Simplify right side
    27,897.76x = 667,040,784.08
  5. Step 5: Solve for x
    x = 667,040,784.08/27,897.76
  6. Step 6: Final answer
    x = 23,910.19

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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.