Home / 21,013.23-31,474.62-9,903.27

Finding the Fourth Proportional to 21,013.23, 31,474.62 and 9,903.27

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Solution

The fourth proportional to 21,013.23, 31,474.62 and 9,903.27 is: 14,833.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013.23 : 31,474.62 = 9,903.27 : x
  2. Step 2: Convert to fraction form
    21,013.23/31,474.62 = 9,903.27/x
  3. Step 3: Cross multiply
    21,013.23x = 31,474.62 × 9,903.27
  4. Step 4: Simplify right side
    21,013.23x = 311,701,660.01
  5. Step 5: Solve for x
    x = 311,701,660.01/21,013.23
  6. Step 6: Final answer
    x = 14,833.59

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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.