Home / 21,941.76-30,296.25-21,898.02

Finding the Fourth Proportional to 21,941.76, 30,296.25 and 21,898.02

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Solution

The fourth proportional to 21,941.76, 30,296.25 and 21,898.02 is: 30,235.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,941.76 : 30,296.25 = 21,898.02 : x
  2. Step 2: Convert to fraction form
    21,941.76/30,296.25 = 21,898.02/x
  3. Step 3: Cross multiply
    21,941.76x = 30,296.25 × 21,898.02
  4. Step 4: Simplify right side
    21,941.76x = 663,427,888.43
  5. Step 5: Solve for x
    x = 663,427,888.43/21,941.76
  6. Step 6: Final answer
    x = 30,235.86

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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.