Home / 21,267.70-31,885.89-7,223.94

Finding the Fourth Proportional to 21,267.70, 31,885.89 and 7,223.94

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Solution

The fourth proportional to 21,267.70, 31,885.89 and 7,223.94 is: 10,830.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.70 : 31,885.89 = 7,223.94 : x
  2. Step 2: Convert to fraction form
    21,267.70/31,885.89 = 7,223.94/x
  3. Step 3: Cross multiply
    21,267.70x = 31,885.89 × 7,223.94
  4. Step 4: Simplify right side
    21,267.70x = 230,341,729.12
  5. Step 5: Solve for x
    x = 230,341,729.12/21,267.70
  6. Step 6: Final answer
    x = 10,830.59

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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.