Home / 20,662.94-28,526.56-15,808.53

Finding the Fourth Proportional to 20,662.94, 28,526.56 and 15,808.53

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Solution

The fourth proportional to 20,662.94, 28,526.56 and 15,808.53 is: 21,824.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662.94 : 28,526.56 = 15,808.53 : x
  2. Step 2: Convert to fraction form
    20,662.94/28,526.56 = 15,808.53/x
  3. Step 3: Cross multiply
    20,662.94x = 28,526.56 × 15,808.53
  4. Step 4: Simplify right side
    20,662.94x = 450,962,979.56
  5. Step 5: Solve for x
    x = 450,962,979.56/20,662.94
  6. Step 6: Final answer
    x = 21,824.72

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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.