Home / 27,988.41-38,580.12-19,020.09

Finding the Fourth Proportional to 27,988.41, 38,580.12 and 19,020.09

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Solution

The fourth proportional to 27,988.41, 38,580.12 and 19,020.09 is: 26,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,988.41 : 38,580.12 = 19,020.09 : x
  2. Step 2: Convert to fraction form
    27,988.41/38,580.12 = 19,020.09/x
  3. Step 3: Cross multiply
    27,988.41x = 38,580.12 × 19,020.09
  4. Step 4: Simplify right side
    27,988.41x = 733,797,354.61
  5. Step 5: Solve for x
    x = 733,797,354.61/27,988.41
  6. Step 6: Final answer
    x = 26,217.90

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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.