Home / 19,582.20-29,377.02-6,438.36

Finding the Fourth Proportional to 19,582.20, 29,377.02 and 6,438.36

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Solution

The fourth proportional to 19,582.20, 29,377.02 and 6,438.36 is: 9,658.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,582.20 : 29,377.02 = 6,438.36 : x
  2. Step 2: Convert to fraction form
    19,582.20/29,377.02 = 6,438.36/x
  3. Step 3: Cross multiply
    19,582.20x = 29,377.02 × 6,438.36
  4. Step 4: Simplify right side
    19,582.20x = 189,139,830.49
  5. Step 5: Solve for x
    x = 189,139,830.49/19,582.20
  6. Step 6: Final answer
    x = 9,658.76

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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.