Home / 19,582.80-29,384.32-9,721.86

Finding the Fourth Proportional to 19,582.80, 29,384.32 and 9,721.86

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Solution

The fourth proportional to 19,582.80, 29,384.32 and 9,721.86 is: 14,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,582.80 : 29,384.32 = 9,721.86 : x
  2. Step 2: Convert to fraction form
    19,582.80/29,384.32 = 9,721.86/x
  3. Step 3: Cross multiply
    19,582.80x = 29,384.32 × 9,721.86
  4. Step 4: Simplify right side
    19,582.80x = 285,670,245.24
  5. Step 5: Solve for x
    x = 285,670,245.24/19,582.80
  6. Step 6: Final answer
    x = 14,587.81

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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.