Home / 33,172.12-45,777.72-18,830.26

Finding the Fourth Proportional to 33,172.12, 45,777.72 and 18,830.26

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Solution

The fourth proportional to 33,172.12, 45,777.72 and 18,830.26 is: 25,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,172.12 : 45,777.72 = 18,830.26 : x
  2. Step 2: Convert to fraction form
    33,172.12/45,777.72 = 18,830.26/x
  3. Step 3: Cross multiply
    33,172.12x = 45,777.72 × 18,830.26
  4. Step 4: Simplify right side
    33,172.12x = 862,006,369.81
  5. Step 5: Solve for x
    x = 862,006,369.81/33,172.12
  6. Step 6: Final answer
    x = 25,985.87

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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.