Home / 21,977.71-30,334.67-12,551.74

Finding the Fourth Proportional to 21,977.71, 30,334.67 and 12,551.74

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Solution

The fourth proportional to 21,977.71, 30,334.67 and 12,551.74 is: 17,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977.71 : 30,334.67 = 12,551.74 : x
  2. Step 2: Convert to fraction form
    21,977.71/30,334.67 = 12,551.74/x
  3. Step 3: Cross multiply
    21,977.71x = 30,334.67 × 12,551.74
  4. Step 4: Simplify right side
    21,977.71x = 380,752,890.83
  5. Step 5: Solve for x
    x = 380,752,890.83/21,977.71
  6. Step 6: Final answer
    x = 17,324.50

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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.