Home / 21,619.56-32,430.32-6,625.60

Finding the Fourth Proportional to 21,619.56, 32,430.32 and 6,625.60

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Solution

The fourth proportional to 21,619.56, 32,430.32 and 6,625.60 is: 9,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619.56 : 32,430.32 = 6,625.60 : x
  2. Step 2: Convert to fraction form
    21,619.56/32,430.32 = 6,625.60/x
  3. Step 3: Cross multiply
    21,619.56x = 32,430.32 × 6,625.60
  4. Step 4: Simplify right side
    21,619.56x = 214,870,328.19
  5. Step 5: Solve for x
    x = 214,870,328.19/21,619.56
  6. Step 6: Final answer
    x = 9,938.70

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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.