Home / 27,860.34-38,447.95-15,285.09

Finding the Fourth Proportional to 27,860.34, 38,447.95 and 15,285.09

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Solution

The fourth proportional to 27,860.34, 38,447.95 and 15,285.09 is: 21,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.34 : 38,447.95 = 15,285.09 : x
  2. Step 2: Convert to fraction form
    27,860.34/38,447.95 = 15,285.09/x
  3. Step 3: Cross multiply
    27,860.34x = 38,447.95 × 15,285.09
  4. Step 4: Simplify right side
    27,860.34x = 587,680,510.69
  5. Step 5: Solve for x
    x = 587,680,510.69/27,860.34
  6. Step 6: Final answer
    x = 21,093.80

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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.