Home / 21,411.56-32,117.40-12,634.40

Finding the Fourth Proportional to 21,411.56, 32,117.40 and 12,634.40

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Solution

The fourth proportional to 21,411.56, 32,117.40 and 12,634.40 is: 18,951.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.56 : 32,117.40 = 12,634.40 : x
  2. Step 2: Convert to fraction form
    21,411.56/32,117.40 = 12,634.40/x
  3. Step 3: Cross multiply
    21,411.56x = 32,117.40 × 12,634.40
  4. Step 4: Simplify right side
    21,411.56x = 405,784,078.56
  5. Step 5: Solve for x
    x = 405,784,078.56/21,411.56
  6. Step 6: Final answer
    x = 18,951.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.