Home / 21,565.08-32,337.90-11,577.78

Finding the Fourth Proportional to 21,565.08, 32,337.90 and 11,577.78

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Solution

The fourth proportional to 21,565.08, 32,337.90 and 11,577.78 is: 17,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,565.08 : 32,337.90 = 11,577.78 : x
  2. Step 2: Convert to fraction form
    21,565.08/32,337.90 = 11,577.78/x
  3. Step 3: Cross multiply
    21,565.08x = 32,337.90 × 11,577.78
  4. Step 4: Simplify right side
    21,565.08x = 374,401,091.86
  5. Step 5: Solve for x
    x = 374,401,091.86/21,565.08
  6. Step 6: Final answer
    x = 17,361.45

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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.