Home / 21,477.15-32,218.65-7,433.40

Finding the Fourth Proportional to 21,477.15, 32,218.65 and 7,433.40

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Solution

The fourth proportional to 21,477.15, 32,218.65 and 7,433.40 is: 11,151.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.15 : 32,218.65 = 7,433.40 : x
  2. Step 2: Convert to fraction form
    21,477.15/32,218.65 = 7,433.40/x
  3. Step 3: Cross multiply
    21,477.15x = 32,218.65 × 7,433.40
  4. Step 4: Simplify right side
    21,477.15x = 239,494,112.91
  5. Step 5: Solve for x
    x = 239,494,112.91/21,477.15
  6. Step 6: Final answer
    x = 11,151.11

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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.