Home / 21,192.45-29,245-11,632.32

Finding the Fourth Proportional to 21,192.45, 29,245 and 11,632.32

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Solution

The fourth proportional to 21,192.45, 29,245 and 11,632.32 is: 16,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.45 : 29,245 = 11,632.32 : x
  2. Step 2: Convert to fraction form
    21,192.45/29,245 = 11,632.32/x
  3. Step 3: Cross multiply
    21,192.45x = 29,245 × 11,632.32
  4. Step 4: Simplify right side
    21,192.45x = 340,187,271.51
  5. Step 5: Solve for x
    x = 340,187,271.51/21,192.45
  6. Step 6: Final answer
    x = 16,052.29

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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.