Home / 21,042.07-31,557.67-6,247.64

Finding the Fourth Proportional to 21,042.07, 31,557.67 and 6,247.64

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Solution

The fourth proportional to 21,042.07, 31,557.67 and 6,247.64 is: 9,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.07 : 31,557.67 = 6,247.64 : x
  2. Step 2: Convert to fraction form
    21,042.07/31,557.67 = 6,247.64/x
  3. Step 3: Cross multiply
    21,042.07x = 31,557.67 × 6,247.64
  4. Step 4: Simplify right side
    21,042.07x = 197,160,961.40
  5. Step 5: Solve for x
    x = 197,160,961.40/21,042.07
  6. Step 6: Final answer
    x = 9,369.85

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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.