Home / 21,160.44-31,728.51-6,364.98

Finding the Fourth Proportional to 21,160.44, 31,728.51 and 6,364.98

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Solution

The fourth proportional to 21,160.44, 31,728.51 and 6,364.98 is: 9,543.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160.44 : 31,728.51 = 6,364.98 : x
  2. Step 2: Convert to fraction form
    21,160.44/31,728.51 = 6,364.98/x
  3. Step 3: Cross multiply
    21,160.44x = 31,728.51 × 6,364.98
  4. Step 4: Simplify right side
    21,160.44x = 201,951,331.58
  5. Step 5: Solve for x
    x = 201,951,331.58/21,160.44
  6. Step 6: Final answer
    x = 9,543.82

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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.