Home / 20,973.26-28,943.28-11,542.02

Finding the Fourth Proportional to 20,973.26, 28,943.28 and 11,542.02

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Solution

The fourth proportional to 20,973.26, 28,943.28 and 11,542.02 is: 15,928.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.26 : 28,943.28 = 11,542.02 : x
  2. Step 2: Convert to fraction form
    20,973.26/28,943.28 = 11,542.02/x
  3. Step 3: Cross multiply
    20,973.26x = 28,943.28 × 11,542.02
  4. Step 4: Simplify right side
    20,973.26x = 334,063,916.63
  5. Step 5: Solve for x
    x = 334,063,916.63/20,973.26
  6. Step 6: Final answer
    x = 15,928.09

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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.