Home / 21,277.35-31,915.56-5,694.98

Finding the Fourth Proportional to 21,277.35, 31,915.56 and 5,694.98

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Solution

The fourth proportional to 21,277.35, 31,915.56 and 5,694.98 is: 8,542.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.35 : 31,915.56 = 5,694.98 : x
  2. Step 2: Convert to fraction form
    21,277.35/31,915.56 = 5,694.98/x
  3. Step 3: Cross multiply
    21,277.35x = 31,915.56 × 5,694.98
  4. Step 4: Simplify right side
    21,277.35x = 181,758,316.31
  5. Step 5: Solve for x
    x = 181,758,316.31/21,277.35
  6. Step 6: Final answer
    x = 8,542.34

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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.