Home / 27,897.92-38,499.82-15,322.68

Finding the Fourth Proportional to 27,897.92, 38,499.82 and 15,322.68

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Solution

The fourth proportional to 27,897.92, 38,499.82 and 15,322.68 is: 21,145.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,897.92 : 38,499.82 = 15,322.68 : x
  2. Step 2: Convert to fraction form
    27,897.92/38,499.82 = 15,322.68/x
  3. Step 3: Cross multiply
    27,897.92x = 38,499.82 × 15,322.68
  4. Step 4: Simplify right side
    27,897.92x = 589,920,421.92
  5. Step 5: Solve for x
    x = 589,920,421.92/27,897.92
  6. Step 6: Final answer
    x = 21,145.68

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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.