Home / 19,958.47-27,542.88-11,005.74

Finding the Fourth Proportional to 19,958.47, 27,542.88 and 11,005.74

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Solution

The fourth proportional to 19,958.47, 27,542.88 and 11,005.74 is: 15,188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,958.47 : 27,542.88 = 11,005.74 : x
  2. Step 2: Convert to fraction form
    19,958.47/27,542.88 = 11,005.74/x
  3. Step 3: Cross multiply
    19,958.47x = 27,542.88 × 11,005.74
  4. Step 4: Simplify right side
    19,958.47x = 303,129,776.13
  5. Step 5: Solve for x
    x = 303,129,776.13/19,958.47
  6. Step 6: Final answer
    x = 15,188.03

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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.