Home / 21,905.03-30,228.92-11,833.47

Finding the Fourth Proportional to 21,905.03, 30,228.92 and 11,833.47

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Solution

The fourth proportional to 21,905.03, 30,228.92 and 11,833.47 is: 16,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.03 : 30,228.92 = 11,833.47 : x
  2. Step 2: Convert to fraction form
    21,905.03/30,228.92 = 11,833.47/x
  3. Step 3: Cross multiply
    21,905.03x = 30,228.92 × 11,833.47
  4. Step 4: Simplify right side
    21,905.03x = 357,713,017.95
  5. Step 5: Solve for x
    x = 357,713,017.95/21,905.03
  6. Step 6: Final answer
    x = 16,330.18

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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.