Home / 19,770.68-29,660.63-5,731.00

Finding the Fourth Proportional to 19,770.68, 29,660.63 and 5,731.00

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Solution

The fourth proportional to 19,770.68, 29,660.63 and 5,731.00 is: 8,597.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.68 : 29,660.63 = 5,731.00 : x
  2. Step 2: Convert to fraction form
    19,770.68/29,660.63 = 5,731.00/x
  3. Step 3: Cross multiply
    19,770.68x = 29,660.63 × 5,731.00
  4. Step 4: Simplify right side
    19,770.68x = 169,985,166.80
  5. Step 5: Solve for x
    x = 169,985,166.80/19,770.68
  6. Step 6: Final answer
    x = 8,597.84

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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.