Home / 20,071-27,663.42-18,867.16

Finding the Fourth Proportional to 20,071, 27,663.42 and 18,867.16

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Solution

The fourth proportional to 20,071, 27,663.42 and 18,867.16 is: 26,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071 : 27,663.42 = 18,867.16 : x
  2. Step 2: Convert to fraction form
    20,071/27,663.42 = 18,867.16/x
  3. Step 3: Cross multiply
    20,071x = 27,663.42 × 18,867.16
  4. Step 4: Simplify right side
    20,071x = 521,930,171.29
  5. Step 5: Solve for x
    x = 521,930,171.29/20,071
  6. Step 6: Final answer
    x = 26,004.19

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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.