Home / 21,387.38-32,078.64-5,803.82

Finding the Fourth Proportional to 21,387.38, 32,078.64 and 5,803.82

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Solution

The fourth proportional to 21,387.38, 32,078.64 and 5,803.82 is: 8,705.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387.38 : 32,078.64 = 5,803.82 : x
  2. Step 2: Convert to fraction form
    21,387.38/32,078.64 = 5,803.82/x
  3. Step 3: Cross multiply
    21,387.38x = 32,078.64 × 5,803.82
  4. Step 4: Simplify right side
    21,387.38x = 186,178,652.40
  5. Step 5: Solve for x
    x = 186,178,652.40/21,387.38
  6. Step 6: Final answer
    x = 8,705.07

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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.