Home / 21,894.36-30,215.74-12,462.92

Finding the Fourth Proportional to 21,894.36, 30,215.74 and 12,462.92

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Solution

The fourth proportional to 21,894.36, 30,215.74 and 12,462.92 is: 17,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.36 : 30,215.74 = 12,462.92 : x
  2. Step 2: Convert to fraction form
    21,894.36/30,215.74 = 12,462.92/x
  3. Step 3: Cross multiply
    21,894.36x = 30,215.74 × 12,462.92
  4. Step 4: Simplify right side
    21,894.36x = 376,576,350.36
  5. Step 5: Solve for x
    x = 376,576,350.36/21,894.36
  6. Step 6: Final answer
    x = 17,199.70

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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.