Home / 21,407.58-29,542.54-11,976.14

Finding the Fourth Proportional to 21,407.58, 29,542.54 and 11,976.14

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Solution

The fourth proportional to 21,407.58, 29,542.54 and 11,976.14 is: 16,527.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407.58 : 29,542.54 = 11,976.14 : x
  2. Step 2: Convert to fraction form
    21,407.58/29,542.54 = 11,976.14/x
  3. Step 3: Cross multiply
    21,407.58x = 29,542.54 × 11,976.14
  4. Step 4: Simplify right side
    21,407.58x = 353,805,595.00
  5. Step 5: Solve for x
    x = 353,805,595.00/21,407.58
  6. Step 6: Final answer
    x = 16,527.12

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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.