Home / 21,332.08-31,997.98-11,476

Finding the Fourth Proportional to 21,332.08, 31,997.98 and 11,476

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Solution

The fourth proportional to 21,332.08, 31,997.98 and 11,476 is: 17,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.08 : 31,997.98 = 11,476 : x
  2. Step 2: Convert to fraction form
    21,332.08/31,997.98 = 11,476/x
  3. Step 3: Cross multiply
    21,332.08x = 31,997.98 × 11,476
  4. Step 4: Simplify right side
    21,332.08x = 367,208,818.48
  5. Step 5: Solve for x
    x = 367,208,818.48/21,332.08
  6. Step 6: Final answer
    x = 17,213.92

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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.