Home / 21,669.15-32,511.47-8,530.95

Finding the Fourth Proportional to 21,669.15, 32,511.47 and 8,530.95

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Solution

The fourth proportional to 21,669.15, 32,511.47 and 8,530.95 is: 12,799.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,669.15 : 32,511.47 = 8,530.95 : x
  2. Step 2: Convert to fraction form
    21,669.15/32,511.47 = 8,530.95/x
  3. Step 3: Cross multiply
    21,669.15x = 32,511.47 × 8,530.95
  4. Step 4: Simplify right side
    21,669.15x = 277,353,682.34
  5. Step 5: Solve for x
    x = 277,353,682.34/21,669.15
  6. Step 6: Final answer
    x = 12,799.47

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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.