Home / 21,304.72-31,935.48-10,195.12

Finding the Fourth Proportional to 21,304.72, 31,935.48 and 10,195.12

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Solution

The fourth proportional to 21,304.72, 31,935.48 and 10,195.12 is: 15,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.72 : 31,935.48 = 10,195.12 : x
  2. Step 2: Convert to fraction form
    21,304.72/31,935.48 = 10,195.12/x
  3. Step 3: Cross multiply
    21,304.72x = 31,935.48 × 10,195.12
  4. Step 4: Simplify right side
    21,304.72x = 325,586,050.86
  5. Step 5: Solve for x
    x = 325,586,050.86/21,304.72
  6. Step 6: Final answer
    x = 15,282.34

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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.