Home / 21,409.36-32,095.59-8,270.96

Finding the Fourth Proportional to 21,409.36, 32,095.59 and 8,270.96

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Solution

The fourth proportional to 21,409.36, 32,095.59 and 8,270.96 is: 12,399.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.36 : 32,095.59 = 8,270.96 : x
  2. Step 2: Convert to fraction form
    21,409.36/32,095.59 = 8,270.96/x
  3. Step 3: Cross multiply
    21,409.36x = 32,095.59 × 8,270.96
  4. Step 4: Simplify right side
    21,409.36x = 265,461,376.63
  5. Step 5: Solve for x
    x = 265,461,376.63/21,409.36
  6. Step 6: Final answer
    x = 12,399.31

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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.