Home / 21,283.20-32,084.19-19,855.98

Finding the Fourth Proportional to 21,283.20, 32,084.19 and 19,855.98

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Solution

The fourth proportional to 21,283.20, 32,084.19 and 19,855.98 is: 29,932.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.20 : 32,084.19 = 19,855.98 : x
  2. Step 2: Convert to fraction form
    21,283.20/32,084.19 = 19,855.98/x
  3. Step 3: Cross multiply
    21,283.20x = 32,084.19 × 19,855.98
  4. Step 4: Simplify right side
    21,283.20x = 637,063,034.96
  5. Step 5: Solve for x
    x = 637,063,034.96/21,283.20
  6. Step 6: Final answer
    x = 29,932.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.