Home / 21,934.07-30,255.09-14,380.89

Finding the Fourth Proportional to 21,934.07, 30,255.09 and 14,380.89

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Solution

The fourth proportional to 21,934.07, 30,255.09 and 14,380.89 is: 19,836.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.07 : 30,255.09 = 14,380.89 : x
  2. Step 2: Convert to fraction form
    21,934.07/30,255.09 = 14,380.89/x
  3. Step 3: Cross multiply
    21,934.07x = 30,255.09 × 14,380.89
  4. Step 4: Simplify right side
    21,934.07x = 435,095,124.03
  5. Step 5: Solve for x
    x = 435,095,124.03/21,934.07
  6. Step 6: Final answer
    x = 19,836.49

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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.