Home / 21,409.46-32,117.27-6,619.53

Finding the Fourth Proportional to 21,409.46, 32,117.27 and 6,619.53

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Solution

The fourth proportional to 21,409.46, 32,117.27 and 6,619.53 is: 9,930.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.46 : 32,117.27 = 6,619.53 : x
  2. Step 2: Convert to fraction form
    21,409.46/32,117.27 = 6,619.53/x
  3. Step 3: Cross multiply
    21,409.46x = 32,117.27 × 6,619.53
  4. Step 4: Simplify right side
    21,409.46x = 212,601,232.28
  5. Step 5: Solve for x
    x = 212,601,232.28/21,409.46
  6. Step 6: Final answer
    x = 9,930.25

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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.