Home / 21,957.38-30,292.91-14,407.88

Finding the Fourth Proportional to 21,957.38, 30,292.91 and 14,407.88

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Solution

The fourth proportional to 21,957.38, 30,292.91 and 14,407.88 is: 19,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.38 : 30,292.91 = 14,407.88 : x
  2. Step 2: Convert to fraction form
    21,957.38/30,292.91 = 14,407.88/x
  3. Step 3: Cross multiply
    21,957.38x = 30,292.91 × 14,407.88
  4. Step 4: Simplify right side
    21,957.38x = 436,456,388.63
  5. Step 5: Solve for x
    x = 436,456,388.63/21,957.38
  6. Step 6: Final answer
    x = 19,877.44

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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.