Home / 21,917.04-30,243.88-12,483.76

Finding the Fourth Proportional to 21,917.04, 30,243.88 and 12,483.76

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Solution

The fourth proportional to 21,917.04, 30,243.88 and 12,483.76 is: 17,226.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917.04 : 30,243.88 = 12,483.76 : x
  2. Step 2: Convert to fraction form
    21,917.04/30,243.88 = 12,483.76/x
  3. Step 3: Cross multiply
    21,917.04x = 30,243.88 × 12,483.76
  4. Step 4: Simplify right side
    21,917.04x = 377,557,339.39
  5. Step 5: Solve for x
    x = 377,557,339.39/21,917.04
  6. Step 6: Final answer
    x = 17,226.66

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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.