Home / 25,722.90-38,582.73-8,205.30

Finding the Fourth Proportional to 25,722.90, 38,582.73 and 8,205.30

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Solution

The fourth proportional to 25,722.90, 38,582.73 and 8,205.30 is: 12,307.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,722.90 : 38,582.73 = 8,205.30 : x
  2. Step 2: Convert to fraction form
    25,722.90/38,582.73 = 8,205.30/x
  3. Step 3: Cross multiply
    25,722.90x = 38,582.73 × 8,205.30
  4. Step 4: Simplify right side
    25,722.90x = 316,582,874.47
  5. Step 5: Solve for x
    x = 316,582,874.47/25,722.90
  6. Step 6: Final answer
    x = 12,307.43

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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.