Home / 21,761.57-30,044.07-14,220.52

Finding the Fourth Proportional to 21,761.57, 30,044.07 and 14,220.52

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Solution

The fourth proportional to 21,761.57, 30,044.07 and 14,220.52 is: 19,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,761.57 : 30,044.07 = 14,220.52 : x
  2. Step 2: Convert to fraction form
    21,761.57/30,044.07 = 14,220.52/x
  3. Step 3: Cross multiply
    21,761.57x = 30,044.07 × 14,220.52
  4. Step 4: Simplify right side
    21,761.57x = 427,242,394.39
  5. Step 5: Solve for x
    x = 427,242,394.39/21,761.57
  6. Step 6: Final answer
    x = 19,632.88

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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.