Home / 27,981.70-41,972.55-15,668.10

Finding the Fourth Proportional to 27,981.70, 41,972.55 and 15,668.10

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Solution

The fourth proportional to 27,981.70, 41,972.55 and 15,668.10 is: 23,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981.70 : 41,972.55 = 15,668.10 : x
  2. Step 2: Convert to fraction form
    27,981.70/41,972.55 = 15,668.10/x
  3. Step 3: Cross multiply
    27,981.70x = 41,972.55 × 15,668.10
  4. Step 4: Simplify right side
    27,981.70x = 657,630,110.66
  5. Step 5: Solve for x
    x = 657,630,110.66/27,981.70
  6. Step 6: Final answer
    x = 23,502.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.