Home / 20,973.52-28,943.44-11,541.88

Finding the Fourth Proportional to 20,973.52, 28,943.44 and 11,541.88

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Solution

The fourth proportional to 20,973.52, 28,943.44 and 11,541.88 is: 15,927.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.52 : 28,943.44 = 11,541.88 : x
  2. Step 2: Convert to fraction form
    20,973.52/28,943.44 = 11,541.88/x
  3. Step 3: Cross multiply
    20,973.52x = 28,943.44 × 11,541.88
  4. Step 4: Simplify right side
    20,973.52x = 334,061,711.27
  5. Step 5: Solve for x
    x = 334,061,711.27/20,973.52
  6. Step 6: Final answer
    x = 15,927.78

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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.