Home / 21,286.08-29,369.52-11,852.28

Finding the Fourth Proportional to 21,286.08, 29,369.52 and 11,852.28

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Solution

The fourth proportional to 21,286.08, 29,369.52 and 11,852.28 is: 16,353.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.08 : 29,369.52 = 11,852.28 : x
  2. Step 2: Convert to fraction form
    21,286.08/29,369.52 = 11,852.28/x
  3. Step 3: Cross multiply
    21,286.08x = 29,369.52 × 11,852.28
  4. Step 4: Simplify right side
    21,286.08x = 348,095,774.51
  5. Step 5: Solve for x
    x = 348,095,774.51/21,286.08
  6. Step 6: Final answer
    x = 16,353.21

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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.