Home / 21,913.14-30,246.33-12,963.77

Finding the Fourth Proportional to 21,913.14, 30,246.33 and 12,963.77

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Solution

The fourth proportional to 21,913.14, 30,246.33 and 12,963.77 is: 17,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.14 : 30,246.33 = 12,963.77 : x
  2. Step 2: Convert to fraction form
    21,913.14/30,246.33 = 12,963.77/x
  3. Step 3: Cross multiply
    21,913.14x = 30,246.33 × 12,963.77
  4. Step 4: Simplify right side
    21,913.14x = 392,106,314.23
  5. Step 5: Solve for x
    x = 392,106,314.23/21,913.14
  6. Step 6: Final answer
    x = 17,893.66

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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.