Home / 21,934.33-32,903.80-7,144.40

Finding the Fourth Proportional to 21,934.33, 32,903.80 and 7,144.40

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Solution

The fourth proportional to 21,934.33, 32,903.80 and 7,144.40 is: 10,717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.33 : 32,903.80 = 7,144.40 : x
  2. Step 2: Convert to fraction form
    21,934.33/32,903.80 = 7,144.40/x
  3. Step 3: Cross multiply
    21,934.33x = 32,903.80 × 7,144.40
  4. Step 4: Simplify right side
    21,934.33x = 235,077,908.72
  5. Step 5: Solve for x
    x = 235,077,908.72/21,934.33
  6. Step 6: Final answer
    x = 10,717.35

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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.