Home / 27,684.86-38,205.54-15,748.29

Finding the Fourth Proportional to 27,684.86, 38,205.54 and 15,748.29

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Solution

The fourth proportional to 27,684.86, 38,205.54 and 15,748.29 is: 21,732.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,684.86 : 38,205.54 = 15,748.29 : x
  2. Step 2: Convert to fraction form
    27,684.86/38,205.54 = 15,748.29/x
  3. Step 3: Cross multiply
    27,684.86x = 38,205.54 × 15,748.29
  4. Step 4: Simplify right side
    27,684.86x = 601,671,923.53
  5. Step 5: Solve for x
    x = 601,671,923.53/27,684.86
  6. Step 6: Final answer
    x = 21,732.89

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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.