Home / 27,712.50-38,244.87-15,776.34

Finding the Fourth Proportional to 27,712.50, 38,244.87 and 15,776.34

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Solution

The fourth proportional to 27,712.50, 38,244.87 and 15,776.34 is: 21,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,712.50 : 38,244.87 = 15,776.34 : x
  2. Step 2: Convert to fraction form
    27,712.50/38,244.87 = 15,776.34/x
  3. Step 3: Cross multiply
    27,712.50x = 38,244.87 × 15,776.34
  4. Step 4: Simplify right side
    27,712.50x = 603,364,072.38
  5. Step 5: Solve for x
    x = 603,364,072.38/27,712.50
  6. Step 6: Final answer
    x = 21,772.27

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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.