Home / 21,295.83-29,388.60-11,864.37

Finding the Fourth Proportional to 21,295.83, 29,388.60 and 11,864.37

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Solution

The fourth proportional to 21,295.83, 29,388.60 and 11,864.37 is: 16,373.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.83 : 29,388.60 = 11,864.37 : x
  2. Step 2: Convert to fraction form
    21,295.83/29,388.60 = 11,864.37/x
  3. Step 3: Cross multiply
    21,295.83x = 29,388.60 × 11,864.37
  4. Step 4: Simplify right side
    21,295.83x = 348,677,224.18
  5. Step 5: Solve for x
    x = 348,677,224.18/21,295.83
  6. Step 6: Final answer
    x = 16,373.03

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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.