Home / 21,873.52-30,185.28-11,937.52

Finding the Fourth Proportional to 21,873.52, 30,185.28 and 11,937.52

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Solution

The fourth proportional to 21,873.52, 30,185.28 and 11,937.52 is: 16,473.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,873.52 : 30,185.28 = 11,937.52 : x
  2. Step 2: Convert to fraction form
    21,873.52/30,185.28 = 11,937.52/x
  3. Step 3: Cross multiply
    21,873.52x = 30,185.28 × 11,937.52
  4. Step 4: Simplify right side
    21,873.52x = 360,337,383.71
  5. Step 5: Solve for x
    x = 360,337,383.71/21,873.52
  6. Step 6: Final answer
    x = 16,473.68

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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.