Home / 21,890.58-32,839.11-8,038.50

Finding the Fourth Proportional to 21,890.58, 32,839.11 and 8,038.50

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Solution

The fourth proportional to 21,890.58, 32,839.11 and 8,038.50 is: 12,058.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.58 : 32,839.11 = 8,038.50 : x
  2. Step 2: Convert to fraction form
    21,890.58/32,839.11 = 8,038.50/x
  3. Step 3: Cross multiply
    21,890.58x = 32,839.11 × 8,038.50
  4. Step 4: Simplify right side
    21,890.58x = 263,977,185.74
  5. Step 5: Solve for x
    x = 263,977,185.74/21,890.58
  6. Step 6: Final answer
    x = 12,058.94

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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.