Home / 21,433.86-32,160.01-11,571.18

Finding the Fourth Proportional to 21,433.86, 32,160.01 and 11,571.18

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Solution

The fourth proportional to 21,433.86, 32,160.01 and 11,571.18 is: 17,361.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.86 : 32,160.01 = 11,571.18 : x
  2. Step 2: Convert to fraction form
    21,433.86/32,160.01 = 11,571.18/x
  3. Step 3: Cross multiply
    21,433.86x = 32,160.01 × 11,571.18
  4. Step 4: Simplify right side
    21,433.86x = 372,129,264.51
  5. Step 5: Solve for x
    x = 372,129,264.51/21,433.86
  6. Step 6: Final answer
    x = 17,361.75

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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.