Home / 21,166.50-31,745.68-10,633.70

Finding the Fourth Proportional to 21,166.50, 31,745.68 and 10,633.70

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Solution

The fourth proportional to 21,166.50, 31,745.68 and 10,633.70 is: 15,948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166.50 : 31,745.68 = 10,633.70 : x
  2. Step 2: Convert to fraction form
    21,166.50/31,745.68 = 10,633.70/x
  3. Step 3: Cross multiply
    21,166.50x = 31,745.68 × 10,633.70
  4. Step 4: Simplify right side
    21,166.50x = 337,574,011.03
  5. Step 5: Solve for x
    x = 337,574,011.03/21,166.50
  6. Step 6: Final answer
    x = 15,948.50

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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.