Home / 19,670.62-27,142.41-11,285.50

Finding the Fourth Proportional to 19,670.62, 27,142.41 and 11,285.50

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Solution

The fourth proportional to 19,670.62, 27,142.41 and 11,285.50 is: 15,572.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.62 : 27,142.41 = 11,285.50 : x
  2. Step 2: Convert to fraction form
    19,670.62/27,142.41 = 11,285.50/x
  3. Step 3: Cross multiply
    19,670.62x = 27,142.41 × 11,285.50
  4. Step 4: Simplify right side
    19,670.62x = 306,315,668.06
  5. Step 5: Solve for x
    x = 306,315,668.06/19,670.62
  6. Step 6: Final answer
    x = 15,572.24

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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.