Home / 21,188.47-29,240.00-11,757.01

Finding the Fourth Proportional to 21,188.47, 29,240.00 and 11,757.01

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Solution

The fourth proportional to 21,188.47, 29,240.00 and 11,757.01 is: 16,224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.47 : 29,240.00 = 11,757.01 : x
  2. Step 2: Convert to fraction form
    21,188.47/29,240.00 = 11,757.01/x
  3. Step 3: Cross multiply
    21,188.47x = 29,240.00 × 11,757.01
  4. Step 4: Simplify right side
    21,188.47x = 343,774,913.61
  5. Step 5: Solve for x
    x = 343,774,913.61/21,188.47
  6. Step 6: Final answer
    x = 16,224.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.