Home / 21,930.95-32,877.93-8,776.15

Finding the Fourth Proportional to 21,930.95, 32,877.93 and 8,776.15

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Solution

The fourth proportional to 21,930.95, 32,877.93 and 8,776.15 is: 13,156.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930.95 : 32,877.93 = 8,776.15 : x
  2. Step 2: Convert to fraction form
    21,930.95/32,877.93 = 8,776.15/x
  3. Step 3: Cross multiply
    21,930.95x = 32,877.93 × 8,776.15
  4. Step 4: Simplify right side
    21,930.95x = 288,541,596.09
  5. Step 5: Solve for x
    x = 288,541,596.09/21,930.95
  6. Step 6: Final answer
    x = 13,156.82

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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.