Home / 21,358.36-29,474.60-11,927.28

Finding the Fourth Proportional to 21,358.36, 29,474.60 and 11,927.28

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Solution

The fourth proportional to 21,358.36, 29,474.60 and 11,927.28 is: 16,459.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358.36 : 29,474.60 = 11,927.28 : x
  2. Step 2: Convert to fraction form
    21,358.36/29,474.60 = 11,927.28/x
  3. Step 3: Cross multiply
    21,358.36x = 29,474.60 × 11,927.28
  4. Step 4: Simplify right side
    21,358.36x = 351,551,807.09
  5. Step 5: Solve for x
    x = 351,551,807.09/21,358.36
  6. Step 6: Final answer
    x = 16,459.68

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1.5x scale

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.