Home / 21,664.64-32,477.44-9,971.84

Finding the Fourth Proportional to 21,664.64, 32,477.44 and 9,971.84

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Solution

The fourth proportional to 21,664.64, 32,477.44 and 9,971.84 is: 14,948.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.64 : 32,477.44 = 9,971.84 : x
  2. Step 2: Convert to fraction form
    21,664.64/32,477.44 = 9,971.84/x
  3. Step 3: Cross multiply
    21,664.64x = 32,477.44 × 9,971.84
  4. Step 4: Simplify right side
    21,664.64x = 323,859,835.29
  5. Step 5: Solve for x
    x = 323,859,835.29/21,664.64
  6. Step 6: Final answer
    x = 14,948.78

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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.