Home / 21,060.36-31,540.86-16,664.76

Finding the Fourth Proportional to 21,060.36, 31,540.86 and 16,664.76

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Solution

The fourth proportional to 21,060.36, 31,540.86 and 16,664.76 is: 24,957.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.36 : 31,540.86 = 16,664.76 : x
  2. Step 2: Convert to fraction form
    21,060.36/31,540.86 = 16,664.76/x
  3. Step 3: Cross multiply
    21,060.36x = 31,540.86 × 16,664.76
  4. Step 4: Simplify right side
    21,060.36x = 525,620,862.09
  5. Step 5: Solve for x
    x = 525,620,862.09/21,060.36
  6. Step 6: Final answer
    x = 24,957.83

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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.