Home / 21,705.60-32,552.64-6,124.80

Finding the Fourth Proportional to 21,705.60, 32,552.64 and 6,124.80

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Solution

The fourth proportional to 21,705.60, 32,552.64 and 6,124.80 is: 9,185.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705.60 : 32,552.64 = 6,124.80 : x
  2. Step 2: Convert to fraction form
    21,705.60/32,552.64 = 6,124.80/x
  3. Step 3: Cross multiply
    21,705.60x = 32,552.64 × 6,124.80
  4. Step 4: Simplify right side
    21,705.60x = 199,378,409.47
  5. Step 5: Solve for x
    x = 199,378,409.47/21,705.60
  6. Step 6: Final answer
    x = 9,185.57

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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.