Home / 21,201.12-31,806.79-14,973.30

Finding the Fourth Proportional to 21,201.12, 31,806.79 and 14,973.30

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Solution

The fourth proportional to 21,201.12, 31,806.79 and 14,973.30 is: 22,463.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.12 : 31,806.79 = 14,973.30 : x
  2. Step 2: Convert to fraction form
    21,201.12/31,806.79 = 14,973.30/x
  3. Step 3: Cross multiply
    21,201.12x = 31,806.79 × 14,973.30
  4. Step 4: Simplify right side
    21,201.12x = 476,252,571.27
  5. Step 5: Solve for x
    x = 476,252,571.27/21,201.12
  6. Step 6: Final answer
    x = 22,463.56

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1.5x scale

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.