Home / 21,949.98-32,930.21-7,158.91

Finding the Fourth Proportional to 21,949.98, 32,930.21 and 7,158.91

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Solution

The fourth proportional to 21,949.98, 32,930.21 and 7,158.91 is: 10,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949.98 : 32,930.21 = 7,158.91 : x
  2. Step 2: Convert to fraction form
    21,949.98/32,930.21 = 7,158.91/x
  3. Step 3: Cross multiply
    21,949.98x = 32,930.21 × 7,158.91
  4. Step 4: Simplify right side
    21,949.98x = 235,744,409.67
  5. Step 5: Solve for x
    x = 235,744,409.67/21,949.98
  6. Step 6: Final answer
    x = 10,740.07

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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.