Home / 19,644.32-29,488.26-9,780.95

Finding the Fourth Proportional to 19,644.32, 29,488.26 and 9,780.95

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Solution

The fourth proportional to 19,644.32, 29,488.26 and 9,780.95 is: 14,682.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,644.32 : 29,488.26 = 9,780.95 : x
  2. Step 2: Convert to fraction form
    19,644.32/29,488.26 = 9,780.95/x
  3. Step 3: Cross multiply
    19,644.32x = 29,488.26 × 9,780.95
  4. Step 4: Simplify right side
    19,644.32x = 288,423,196.65
  5. Step 5: Solve for x
    x = 288,423,196.65/19,644.32
  6. Step 6: Final answer
    x = 14,682.27

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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.