Home / 40,172.99-55,437.21-22,268.30

Finding the Fourth Proportional to 40,172.99, 55,437.21 and 22,268.30

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Solution

The fourth proportional to 40,172.99, 55,437.21 and 22,268.30 is: 30,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,172.99 : 55,437.21 = 22,268.30 : x
  2. Step 2: Convert to fraction form
    40,172.99/55,437.21 = 22,268.30/x
  3. Step 3: Cross multiply
    40,172.99x = 55,437.21 × 22,268.30
  4. Step 4: Simplify right side
    40,172.99x = 1,234,492,146.26
  5. Step 5: Solve for x
    x = 1,234,492,146.26/40,172.99
  6. Step 6: Final answer
    x = 30,729.41

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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.