Home / 21,262.38-31,900.40-6,474.16

Finding the Fourth Proportional to 21,262.38, 31,900.40 and 6,474.16

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Solution

The fourth proportional to 21,262.38, 31,900.40 and 6,474.16 is: 9,713.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262.38 : 31,900.40 = 6,474.16 : x
  2. Step 2: Convert to fraction form
    21,262.38/31,900.40 = 6,474.16/x
  3. Step 3: Cross multiply
    21,262.38x = 31,900.40 × 6,474.16
  4. Step 4: Simplify right side
    21,262.38x = 206,528,293.66
  5. Step 5: Solve for x
    x = 206,528,293.66/21,262.38
  6. Step 6: Final answer
    x = 9,713.32

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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.