Home / 20,695.70-31,048.17-7,548.07

Finding the Fourth Proportional to 20,695.70, 31,048.17 and 7,548.07

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Solution

The fourth proportional to 20,695.70, 31,048.17 and 7,548.07 is: 11,323.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.70 : 31,048.17 = 7,548.07 : x
  2. Step 2: Convert to fraction form
    20,695.70/31,048.17 = 7,548.07/x
  3. Step 3: Cross multiply
    20,695.70x = 31,048.17 × 7,548.07
  4. Step 4: Simplify right side
    20,695.70x = 234,353,755.49
  5. Step 5: Solve for x
    x = 234,353,755.49/20,695.70
  6. Step 6: Final answer
    x = 11,323.79

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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.