Home / 21,577.53-29,777.04-12,017.34

Finding the Fourth Proportional to 21,577.53, 29,777.04 and 12,017.34

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Solution

The fourth proportional to 21,577.53, 29,777.04 and 12,017.34 is: 16,583.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,577.53 : 29,777.04 = 12,017.34 : x
  2. Step 2: Convert to fraction form
    21,577.53/29,777.04 = 12,017.34/x
  3. Step 3: Cross multiply
    21,577.53x = 29,777.04 × 12,017.34
  4. Step 4: Simplify right side
    21,577.53x = 357,840,813.87
  5. Step 5: Solve for x
    x = 357,840,813.87/21,577.53
  6. Step 6: Final answer
    x = 16,583.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.