Home / 33,156.28-45,754.32-18,999.28

Finding the Fourth Proportional to 33,156.28, 45,754.32 and 18,999.28

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Solution

The fourth proportional to 33,156.28, 45,754.32 and 18,999.28 is: 26,218.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,156.28 : 45,754.32 = 18,999.28 : x
  2. Step 2: Convert to fraction form
    33,156.28/45,754.32 = 18,999.28/x
  3. Step 3: Cross multiply
    33,156.28x = 45,754.32 × 18,999.28
  4. Step 4: Simplify right side
    33,156.28x = 869,299,136.89
  5. Step 5: Solve for x
    x = 869,299,136.89/33,156.28
  6. Step 6: Final answer
    x = 26,218.23

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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.