Home / 21,971.64-32,929.92-9,477.48

Finding the Fourth Proportional to 21,971.64, 32,929.92 and 9,477.48

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Solution

The fourth proportional to 21,971.64, 32,929.92 and 9,477.48 is: 14,204.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,971.64 : 32,929.92 = 9,477.48 : x
  2. Step 2: Convert to fraction form
    21,971.64/32,929.92 = 9,477.48/x
  3. Step 3: Cross multiply
    21,971.64x = 32,929.92 × 9,477.48
  4. Step 4: Simplify right side
    21,971.64x = 312,092,658.20
  5. Step 5: Solve for x
    x = 312,092,658.20/21,971.64
  6. Step 6: Final answer
    x = 14,204.34

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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.