Home / 27,900.99-38,513.48-18,472.59

Finding the Fourth Proportional to 27,900.99, 38,513.48 and 18,472.59

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Solution

The fourth proportional to 27,900.99, 38,513.48 and 18,472.59 is: 25,498.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,900.99 : 38,513.48 = 18,472.59 : x
  2. Step 2: Convert to fraction form
    27,900.99/38,513.48 = 18,472.59/x
  3. Step 3: Cross multiply
    27,900.99x = 38,513.48 × 18,472.59
  4. Step 4: Simplify right side
    27,900.99x = 711,443,633.15
  5. Step 5: Solve for x
    x = 711,443,633.15/27,900.99
  6. Step 6: Final answer
    x = 25,498.87

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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.