Home / 27,708.84-38,237.67-15,771.92

Finding the Fourth Proportional to 27,708.84, 38,237.67 and 15,771.92

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Solution

The fourth proportional to 27,708.84, 38,237.67 and 15,771.92 is: 21,764.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,708.84 : 38,237.67 = 15,771.92 : x
  2. Step 2: Convert to fraction form
    27,708.84/38,237.67 = 15,771.92/x
  3. Step 3: Cross multiply
    27,708.84x = 38,237.67 × 15,771.92
  4. Step 4: Simplify right side
    27,708.84x = 603,081,281.04
  5. Step 5: Solve for x
    x = 603,081,281.04/27,708.84
  6. Step 6: Final answer
    x = 21,764.94

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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.