Home / 25,392.58-38,103.46-19,830.31

Finding the Fourth Proportional to 25,392.58, 38,103.46 and 19,830.31

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Solution

The fourth proportional to 25,392.58, 38,103.46 and 19,830.31 is: 29,756.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,392.58 : 38,103.46 = 19,830.31 : x
  2. Step 2: Convert to fraction form
    25,392.58/38,103.46 = 19,830.31/x
  3. Step 3: Cross multiply
    25,392.58x = 38,103.46 × 19,830.31
  4. Step 4: Simplify right side
    25,392.58x = 755,603,421.93
  5. Step 5: Solve for x
    x = 755,603,421.93/25,392.58
  6. Step 6: Final answer
    x = 29,756.86

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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.