Home / 28,071.28-38,742.06-19,567.90

Finding the Fourth Proportional to 28,071.28, 38,742.06 and 19,567.90

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Solution

The fourth proportional to 28,071.28, 38,742.06 and 19,567.90 is: 27,006.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.28 : 38,742.06 = 19,567.90 : x
  2. Step 2: Convert to fraction form
    28,071.28/38,742.06 = 19,567.90/x
  3. Step 3: Cross multiply
    28,071.28x = 38,742.06 × 19,567.90
  4. Step 4: Simplify right side
    28,071.28x = 758,100,755.87
  5. Step 5: Solve for x
    x = 758,100,755.87/28,071.28
  6. Step 6: Final answer
    x = 27,006.28

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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.