Home / 21,577.64-29,776.79-12,017.27

Finding the Fourth Proportional to 21,577.64, 29,776.79 and 12,017.27

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Solution

The fourth proportional to 21,577.64, 29,776.79 and 12,017.27 is: 16,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,577.64 : 29,776.79 = 12,017.27 : x
  2. Step 2: Convert to fraction form
    21,577.64/29,776.79 = 12,017.27/x
  3. Step 3: Cross multiply
    21,577.64x = 29,776.79 × 12,017.27
  4. Step 4: Simplify right side
    21,577.64x = 357,835,516.19
  5. Step 5: Solve for x
    x = 357,835,516.19/21,577.64
  6. Step 6: Final answer
    x = 16,583.63

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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.