Home / 21,569.41-32,355.51-6,778.95

Finding the Fourth Proportional to 21,569.41, 32,355.51 and 6,778.95

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Solution

The fourth proportional to 21,569.41, 32,355.51 and 6,778.95 is: 10,168.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.41 : 32,355.51 = 6,778.95 : x
  2. Step 2: Convert to fraction form
    21,569.41/32,355.51 = 6,778.95/x
  3. Step 3: Cross multiply
    21,569.41x = 32,355.51 × 6,778.95
  4. Step 4: Simplify right side
    21,569.41x = 219,336,384.51
  5. Step 5: Solve for x
    x = 219,336,384.51/21,569.41
  6. Step 6: Final answer
    x = 10,168.86

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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.