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Finding the Fourth Proportional to 22,649.67, 31,250.07 and 13,690.67

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Solution

The fourth proportional to 22,649.67, 31,250.07 and 13,690.67 is: 18,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,649.67 : 31,250.07 = 13,690.67 : x
  2. Step 2: Convert to fraction form
    22,649.67/31,250.07 = 13,690.67/x
  3. Step 3: Cross multiply
    22,649.67x = 31,250.07 × 13,690.67
  4. Step 4: Simplify right side
    22,649.67x = 427,834,239.60
  5. Step 5: Solve for x
    x = 427,834,239.60/22,649.67
  6. Step 6: Final answer
    x = 18,889.20

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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.