Home / 21,029.36-31,565.92-15,488.96

Finding the Fourth Proportional to 21,029.36, 31,565.92 and 15,488.96

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Solution

The fourth proportional to 21,029.36, 31,565.92 and 15,488.96 is: 23,249.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.36 : 31,565.92 = 15,488.96 : x
  2. Step 2: Convert to fraction form
    21,029.36/31,565.92 = 15,488.96/x
  3. Step 3: Cross multiply
    21,029.36x = 31,565.92 × 15,488.96
  4. Step 4: Simplify right side
    21,029.36x = 488,923,272.24
  5. Step 5: Solve for x
    x = 488,923,272.24/21,029.36
  6. Step 6: Final answer
    x = 23,249.56

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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.