Home / 21,565.02-29,757.32-12,133.38

Finding the Fourth Proportional to 21,565.02, 29,757.32 and 12,133.38

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Solution

The fourth proportional to 21,565.02, 29,757.32 and 12,133.38 is: 16,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,565.02 : 29,757.32 = 12,133.38 : x
  2. Step 2: Convert to fraction form
    21,565.02/29,757.32 = 12,133.38/x
  3. Step 3: Cross multiply
    21,565.02x = 29,757.32 × 12,133.38
  4. Step 4: Simplify right side
    21,565.02x = 361,056,871.34
  5. Step 5: Solve for x
    x = 361,056,871.34/21,565.02
  6. Step 6: Final answer
    x = 16,742.71

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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.