Home / 21,042.36-31,558.07-6,247.76

Finding the Fourth Proportional to 21,042.36, 31,558.07 and 6,247.76

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Solution

The fourth proportional to 21,042.36, 31,558.07 and 6,247.76 is: 9,370.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.36 : 31,558.07 = 6,247.76 : x
  2. Step 2: Convert to fraction form
    21,042.36/31,558.07 = 6,247.76/x
  3. Step 3: Cross multiply
    21,042.36x = 31,558.07 × 6,247.76
  4. Step 4: Simplify right side
    21,042.36x = 197,167,167.65
  5. Step 5: Solve for x
    x = 197,167,167.65/21,042.36
  6. Step 6: Final answer
    x = 9,370.01

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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.