Home / 21,772.12-32,662.30-15,516.60

Finding the Fourth Proportional to 21,772.12, 32,662.30 and 15,516.60

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Solution

The fourth proportional to 21,772.12, 32,662.30 and 15,516.60 is: 23,277.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,772.12 : 32,662.30 = 15,516.60 : x
  2. Step 2: Convert to fraction form
    21,772.12/32,662.30 = 15,516.60/x
  3. Step 3: Cross multiply
    21,772.12x = 32,662.30 × 15,516.60
  4. Step 4: Simplify right side
    21,772.12x = 506,807,844.18
  5. Step 5: Solve for x
    x = 506,807,844.18/21,772.12
  6. Step 6: Final answer
    x = 23,277.84

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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.