Home / 22,680.35-31,296.76-13,118.70

Finding the Fourth Proportional to 22,680.35, 31,296.76 and 13,118.70

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Solution

The fourth proportional to 22,680.35, 31,296.76 and 13,118.70 is: 18,102.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,680.35 : 31,296.76 = 13,118.70 : x
  2. Step 2: Convert to fraction form
    22,680.35/31,296.76 = 13,118.70/x
  3. Step 3: Cross multiply
    22,680.35x = 31,296.76 × 13,118.70
  4. Step 4: Simplify right side
    22,680.35x = 410,572,889.98
  5. Step 5: Solve for x
    x = 410,572,889.98/22,680.35
  6. Step 6: Final answer
    x = 18,102.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.