Home / 21,192.36-29,236.32-12,804

Finding the Fourth Proportional to 21,192.36, 29,236.32 and 12,804

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Solution

The fourth proportional to 21,192.36, 29,236.32 and 12,804 is: 17,664.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.36 : 29,236.32 = 12,804 : x
  2. Step 2: Convert to fraction form
    21,192.36/29,236.32 = 12,804/x
  3. Step 3: Cross multiply
    21,192.36x = 29,236.32 × 12,804
  4. Step 4: Simplify right side
    21,192.36x = 374,341,841.28
  5. Step 5: Solve for x
    x = 374,341,841.28/21,192.36
  6. Step 6: Final answer
    x = 17,664.00

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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.