Home / 29,172.60-40,262.40-18,577.80

Finding the Fourth Proportional to 29,172.60, 40,262.40 and 18,577.80

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Solution

The fourth proportional to 29,172.60, 40,262.40 and 18,577.80 is: 25,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,172.60 : 40,262.40 = 18,577.80 : x
  2. Step 2: Convert to fraction form
    29,172.60/40,262.40 = 18,577.80/x
  3. Step 3: Cross multiply
    29,172.60x = 40,262.40 × 18,577.80
  4. Step 4: Simplify right side
    29,172.60x = 747,986,814.72
  5. Step 5: Solve for x
    x = 747,986,814.72/29,172.60
  6. Step 6: Final answer
    x = 25,640.05

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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.