Home / 21,192.30-29,214.14-16,147.77

Finding the Fourth Proportional to 21,192.30, 29,214.14 and 16,147.77

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Solution

The fourth proportional to 21,192.30, 29,214.14 and 16,147.77 is: 22,260.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.30 : 29,214.14 = 16,147.77 : x
  2. Step 2: Convert to fraction form
    21,192.30/29,214.14 = 16,147.77/x
  3. Step 3: Cross multiply
    21,192.30x = 29,214.14 × 16,147.77
  4. Step 4: Simplify right side
    21,192.30x = 471,743,200.51
  5. Step 5: Solve for x
    x = 471,743,200.51/21,192.30
  6. Step 6: Final answer
    x = 22,260.13

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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.