Home / 21,904.60-30,228.36-11,833.04

Finding the Fourth Proportional to 21,904.60, 30,228.36 and 11,833.04

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Solution

The fourth proportional to 21,904.60, 30,228.36 and 11,833.04 is: 16,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.60 : 30,228.36 = 11,833.04 : x
  2. Step 2: Convert to fraction form
    21,904.60/30,228.36 = 11,833.04/x
  3. Step 3: Cross multiply
    21,904.60x = 30,228.36 × 11,833.04
  4. Step 4: Simplify right side
    21,904.60x = 357,693,393.01
  5. Step 5: Solve for x
    x = 357,693,393.01/21,904.60
  6. Step 6: Final answer
    x = 16,329.60

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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.