Home / 28,092.43-42,107.01-14,031.28

Finding the Fourth Proportional to 28,092.43, 42,107.01 and 14,031.28

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Solution

The fourth proportional to 28,092.43, 42,107.01 and 14,031.28 is: 21,031.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092.43 : 42,107.01 = 14,031.28 : x
  2. Step 2: Convert to fraction form
    28,092.43/42,107.01 = 14,031.28/x
  3. Step 3: Cross multiply
    28,092.43x = 42,107.01 × 14,031.28
  4. Step 4: Simplify right side
    28,092.43x = 590,815,247.27
  5. Step 5: Solve for x
    x = 590,815,247.27/28,092.43
  6. Step 6: Final answer
    x = 21,031.12

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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.